Just wanted to confirm if this addon would be updated for Cata Classic or no. I get it, people's lives get crazy and passion projects have to put to the side. Was just wondering, either way thank you for the awesome addon through Wrath Classic!

That would be acceptable except if you check my links, they are there. Wowhead just hasn't bothered to do featured article yet. But they are there, just need to know how to navigate the drop down list on the left hand side to find it.
Update: After double checking, every class but Shaman seems to be there. All spec's of shaman seem to be missing theirs, not sure if it's being tweaked, uploaded but hidden still for some reason or some other unknown reason, but the rest are there.
https://www.wowhead.com/cata/guide/classes/death-knight/blood/tank-bis-gear-pre-raid
https://www.wowhead.com/cata/guide/classes/death-knight/frost/dps-bis-gear-pre-raid
https://www.wowhead.com/cata/guide/classes/death-knight/unholy/dps-bis-gear-pre-raid

Author is waiting for BiS lists on wowhead as per answer here: #7