The original Beatles albums, with the 2 CD Past Masters set of singles and other unreleased British non-album track totals around 220 songs (including LOVE and Let it Be. . . Naked). At the current pace of Rock Band DLC output, assuming HMX split their current resources in two, Rock Band 2 and The Beatles; Rock Band would each receive 4ish tracks a week. It is conceivable that the entire Beatles official catalogue plus other material could be released in DLC form before the end of 2010. I don't think it is likely, but if enough effort was put in to establish this game and make it the best that it could be, many would appreciate it and sales would definitely benefit.
I would support receiving fewer regular updates in favor of a more even split of Beatles tracks, but other fans might be upset. Your thoughts?