The editor is getting better and better. If it's alright with you I have a few tips and things I(and probably others to) would like in this editor. Not that I doubt that you would make it good, but tips on the way is always helpful =). Alright, here goes -
It looks like Capcom uses a similar way to create levels in the SNES games as in the NES games. Well, in the level editor there is a tile window, a tsa window and a structure window. Is it possible to make the structure window bigger? Like in MegaFLE X if you tried it? And maybe in the tsa, a way for the user to choose the tsa settings? Like wall, spike etc? And in the tile window, a tile editor? That would be the ultimate. And about colours, would pallete animations be possible to do? And pallete colour changes and such. Also a title screen, weapon menu and level select screen editor in the window where you select the level you want to edit would be sweet =)
Well, I have no idea how hard these things is to make, and Iam sure you already have planned most of them =). I can't explain how thrilled iam about future realeses on this! Good luck to you!