I'd rather they save Archangel for X-Force.
Yes bring back Trask and have him create Bastion. Base the movie on Operation Zero Tolerance and Episode 1,2,13 of TAS mixed the team work aspect up like in X-Men vs Street Fighter. Go full 90's brightness. Hire Iron Head Studios and get out the way of preferably a Two Man/Woman Director Team & and Two Man/Woman Writing Team. Have Claremont write the treatment.