I think I remember reading somewhere that he was a huge Deadpool fan and one of the driving forces behind getting a proper Deadpool movie going. I also expect that we will see him further as from what I recall, the timeline that the X-men Deadpool showed up in is now gone and replaced. I guess the old (terrible) Deadpool is history.

I thought the trailer was great. It's refreshing with so many superhero movies to see some that are just so different.