The concept of AE v4, and indeed effective administration, programming updates, etc. to the game has been discussed for the six years I have been playing this game, with little in the way of new changes. Now, this forum has started hosting discussions regarding the game itself losing players due, in part, to becoming stale.
At this time it appears that AE has very little in the way of administrative or programming resources, and even less to actually program a new AEv4.
AE is also free. There are a lot of ads in this game, but those likely don't bring in much net revenue less the cost of maintaining servers. Not enough to make it worthwhile of the time needed to program, release and administer patches to AEv3 or introduce AEv4.
Therefore, my proposal is this: AE remains a free game, but perhaps they can introduce an optional fundraising campaign, perhaps through a Patreon, Ko-Fi or other crowdsourced model, to raise the funds necessary to hire the programming resources necessary to finish and introduce a patch to AEv3, introduce AEv4, and make it more worthwhile for mods and administrators to keep the game going well. I don't mind Yuxi getting paid for his time on this game.
I'd be happy to make a donation to any such campaign. And while many players are not in that financial position, I'm sure some others are.
Thoughts?