Well, according to a tweet posted by New Orleans producer Niyo, Juvenile has "officially" signed to YMCMB.  However, there has yet to be any official statement from Lil Wayne, Birdman, or Juvenile to confirm whether or not this is true.  

Juvenile left Cash Money Records back in 2002 due to monetary issues with the label, but last month he sat down with Sway In The Morning and openly stated that he doesn't hold any ill will towards his former partners and is definitely willing to work with them again.

"I didn't look at it like they owe me anything. They should do an album with me. If we can sit down at the table and work it out, I really don't have a problem doing business with them or nobody. That's why I was so quick to release the rights to 'Back That Azz Up' to Drake. I'm a businessman."

We'll have to wait and see if Wayne, Birdman, or Juvenile confirm in the near future that he has actually signed to YMCMB.

Source: smokingsection.uproxx.com