Well so far the Applied Energistics - LP conversion has been stopped since beginning of 1.7.10 and there is no further development in AE2 for ~ 5 month.
As of 1.9 development i suggest a information/api conversion with refined storage.
http://minecraft.curseforge.com/projects/refined-storage
The mod is a build from scrath version and acts as as ae1/ae2 crossover.
An upcoming storage using between LP and RS will be nice.

Just though I would mention; There is a active attempt to port Applied Energistics to MC 1.10.

Porting effort can be followed at: AEModernMCPort/Applied-Energistics-2

The another AE2-replacement is Storage Networks. It already has a support for fluid storage too, and also has some storage blocks. As far as I know, they're at a good state,and SN only lacks autocrafting, what could be provided by LP.

my intrest are for many versions to have lp and some form of adiditional storage like ae1 back in 1.6.4

so i had some time to review storage networks.
and it is more a cheap/op version of logistics pipes than an ae2 replacement.
with storage network you can cheaply do the logistic pipes stuff including fluid storage/transportation.
additionally it has an interface similar to ae, which makes it more intresting for people to get used to it in 1.9.
in my eyes it is more a substitute for logistic pipes than for ae

@hron84 There is no plan to "beat AE in popularity", btw.

Just in general: Whether there will be an integration between any of the named mods with LP depends not only on LP.
The old AE <-> LP integration happened to work out pretty well and was done by one of the LP contributors.

I had some time to take a look into Refined Storage. It tries hard to promote itself as an AE replacement, but in fact it is not. I can't remember AE ever has a storage blocks, it had ME drive from very beginnings, this made AE as great as it was. I think it's a step back, and will prevent this mod to beat AE in popularity.

Also, its blocks are not multiparted, has a seriously problematic design, cables are unclear for me, and also the language of its wiki is far from the clearness of AE wiki. Literally if I do not know AE, I'd have no idea how interfaces work based on their wiki.

No offense, I appreciate their work, but this mod is very far from be prepared for integration with LP, because it needs a lot of love and at some point some serious redesign both in base logic, both in look&feel. And I can't imagine it will not introduce serious API changes.

i cannot see any progress since the start of 2016 from ae2. excluding the language update in april. i have ae1 & ae2 experience and also test a bit around with refined storage.
at the moment i only see progress on a few mods (including this) and have to switch mods to be prepared for moving into 1.8 and 1.9. one of the things io have to look into is the double wirering of lp&ae2 because of lacking sharing storage and the no progress on ae2 side makes me think of the breaking away of ae2.
that is the reason for my suggestion.

@HadesDurin If you do thinking further you can figure out why. Minecraft became a quickly moving target and I think bigger mods, like AE are waiting for the cooldown period, for a longer supported platform like 1.7.10 was in the past. As far as I watched, there was no month with new modded MC platform release (read: Forge port) and this is quite far from a stable basement that needed for bigger mods. Mods that have enough contributors to follow this speed were able to be ported to new platforms but other mods - including AE2, BC, etc - just waiting for everything calm down.

I'd rather not urge this process. Someone put MC development on steroids and this is a good thing - I'd like to wait 'til everything will be clean.

@theZorro266 I got it, however if we assume AE will not be ported (although I do not know what's are AlgorithmX2's plan) we need some replacement and if I say replacement, I mean a popular, easy-to-use storage mod that brings most benefits of AE2. Because there is a whole lots of mod that tries to solve storage issues (even RFtools have a genious solution), but AE2 was far more than just a chest with flexible sides. Refined Storage is a good starting point, but it is very far from giving same gaming experience as AE gave us. Not only in look&feel but in functionality, complexity and usage experience.

From LP side: you could integrate with everything that exists in the modded world, however supporting it is a very different thing. I think you understand what it means. My idea was just this: support only that went already popular and has a stable, reliable development cycle with no perceptible big changes. The human factor (who will do the integration itself) is only a secondary priority I think.

Of course, if there would be a public, documented API for external integration that not requires a code in LP itself, it would be much better.