I think we know by now that RMVX Ace is more powerful scripting wise, but what about the editor itself? How is the map editor, how do tilesets work, are there any new event commands added?
Is the editor more like RMVX or more like RMXP. How is the RTP, is it the same chibi-style RMVX has or more mature like RMXP did?
RMVX did not convince me to abandon RMXP, and so far neither has this new version.
They added in the same tileset system as xp, where you can import and set them up like so. There are a few new commands, especially regarding the built in "follow" or "Caterpiller" party command, as well as the reserve party. The reserve party system they added looks very similar MA's Party Reserve Script to me. And the party can follow the main player around and the active player can be changed, as well via the menu. This can all be stopped with event commands, of course. It also seems there is some kind of character face & sprite generator built in the game. There's also now a "Magic Defense" attribute, which I greatly enjoy that was not in VX. I also believe there is a built-in enemy battler background system, where you can change the background to images when fighting, but I'm not totally sure. I believe you can also have random encounters when on a boat now. I think there's also a character biography system built in, as well as an overall better status screen? I think there's also an "optimize" command in the inventory, but I'm not 100% sure.
The editor seems like a perfect mix between RMVX & RMXP to me. It brings back all the good aspects of xp into vx, with some stuff added. The chibi style is still like vx. The tilesets look a little better then the old vx, as well, in little ways.
That's all I recall for now. I personally believe that Ace is worth it, and I look forward to the full release.
Hope that was any help.