And while he might still be doing something to make that happen for the future, show creator Jeff Franklin has said he won’t be making those attempts anymore, since they should clearly know that they’d be welcome on Fuller House if they chose to appear.
At this point, it’s hard to know what would actually change their minds about returning to a TV project.
As one of the driving forces behind Fuller House coming into existence, John Stamos was actually one of the people who tried hardest to get Ashley and Mary-Kate Olsen back into this world, and not just for the first season.