What do you think about this? : -723582209204948353 (Current world overlaid)
I like it because it still has ocean access for all the spots: arteggio's western area (truly, that region above all others would bug me if it was encased in land), my eastern saved ocean (~ish, but I can deal with it), Ken's southern bay, and Elysium's Kilimanjaro base. Additionally, it has a huge warm ocean to the NW (coral, most likely), massive snowfields to the W, and a decent smattering of other biomes not too big and not too small.
As far as a publicly viewable seed goes, I'd say it doesn't matter like we thought it did in previous worlds. Heck, it's an
asset for our group. If I want to get to a Jungle or whatever I'm not going to bloat the world by flying around looking for one, I'm going to tunnel to it in the Nether.