Mike Scott, San Diego, CA, USA (XBL: MikeHellion, PSN: MarcHellion)
The only regular suggestion I have that I'm not so sure wouldn't render new songs incompatible with RB3 is improving the lip-sync. I think the old harmony songs could be dealt with the same way GH5 handled adding Band Moments, and new songs with improved lip-sync could have the new style lip-sync in a new part of the file. Did the addition of HOPO chords make them unplayable in RB1?
We've ended on a sour note:
Still...thank you for the music
But I believe in this and it's been tested by research: he who  nuns will later join the church.
- Joe Strummer
Who do I have to get drunk in order to get "Red Solo Cup" in Rock Band?