I will just point out that in the screen shots they showed of the new game they actually didn't change the tiny viruses to match the new designs. They still look like the old ones. Hopefully this is just an oversight and will be corrected before release, otherwise your patch will actually be superior to the new game in that respect.
I was thinking that another patch that might might be a worthy project in the future is to add in the mode from the new game where Luigi tosses only pairs of 'L' shaped pill packets instead of single pills. That mode looks like it could be tons of fun. Of course it'll probably take some considerable ASM voodoo to accomplish.
Actually, there are some bits of footage where the play field viruses look like the new ones. Can't remember if it was only in the Nintendo Direct footage or not. It's either an option or just unfinished development.
And yeah, I'd love to put Operation L into the game but it's beyond my capability.
I've actually completed the damage/game over animations for the new viruses and I'm super happy with what I accomplished given a frustrating limitation with the damage frames. I'm not at my computer right now so I don't have pics at the moment. I just need to make the graphic of the pink virus holding up the 'X' sign for multiplayer and they're done! (Pending feedback from you guys, anyway.)
I also wanted to change the background palettes for low/med/high speeds but that's a no-go; it dynamically assigns the main color of those palettes rather than have a separate palette for each one that I can edit. The title screen'll get a new background though, since I can edit that and the new green logo looks bland against a green background.EDIT:
I just finished my overhaul of the title screen and I couldn't be bothered to make new GIFs for the virus animations, so I uploaded a whole video to show off everything at once!
Check it: http://www.youtube.com/watch?v=XJuQ1JuOBuQ
How do you think this looks? I further modified the virus palettes and of course the title screen is heavily redone. The orange/white background palette is a result of me wanting proper colors on the little Luigi sprite in the "Year of Luigi" line since there just wasn't enough allowance in the BG palettes to slot in the orange color without also using it somewhere else. If that's too jarring, my other choice is the blue-on-blue that Vanya suggested and I can get rid of the Year of Luigi bit.