Thanks so much for all the support guys, it really does mean so much to me! Trying to get things finished up ASAP!
I'm currently finishing up the last 3 textures before the next release. Just doing the animations for the kelp, tall seagrass and normal seagrass (static base textures are done though). Don't have my adobe CC subscription anymore so I can't make them easily with adobe after effects like I'd planned to. Hopefully won't take too much longer for me to figure out a solution though, even if it means doing them by hand!
As for what's going to be in the initial update: Format fixes so it works with 1.13, huuuuge number of redone textures (I've almost redone the colour and shading for almost all blocks currently), some new mobs like fish and parrots (all variants) and a bunch of new textures for new blocks.