I was wondering if there were plans for things like:

Botania: Manasteel, Terrasteel and Elementium
Tinkers Construct: Ardite, Cobalt, Manyullyn maybe Knightslime

Yes, it is in the plans. New plates and gears from other mods coming soon.

I added botania support in 9.0, tinkers construct support coming soon in 10.0

I just want to say think you!! Looking forward to all that you may add in the future

Tinkers' Construct items added in 10.0.