i dont think the next album will be a full JJFP album, i dont think that will ever happen, but i think jeff will be on at least one song. They cant avoid it bcoz us fans are putting so much pressure on them to do it lol.
I think the next one will be similar to Lost and Found, Will had more freedom on that album and it paid off, it could be his last, it might not be. He can still sell records and the success of switch shows that.