If it aint DC or marvel, no.
It IS Marvel, just part of the Fox Universe (along with X-Men and Fantastic Four) instead of the greater MCU.
Won't see it on opening night, but if it looks like it is getting good reception I might go see it. Otherwise I'll probably just wait for the blu-ray.
In regards to the trailers during the Super Bowl, was that the first time they officially showed Ant-Man on Cap's side? I guess it was hinted at in the extra scene at the end of the Ant-Man movie. Also, Psylocke cutting that car in half with her telekentic blades was pretty damn cool.