Harmonix representative John Drake has told BBPS that DLC for The Beatles: Rock Band is not a sure thing as it all depends on sales.
"Every time we do one song, it's not like Rock Band where we wait for the masters to come in and just author them... its like, send people to Abbey Road, use the original tape, separate them out... it costs thousands of dollars," he said.
"We're waiting to see how things sell. We're waiting to see how the albums do. If they sell well, we'll have a lot more content."
Somehow, we don't see sales for this title being an issue, but we could be wrong.