There appeared to be a lot of interest in the 2000AD prog zero and the banned issue of Action that came with the Action 2020 Special.
So my idea would be as a premium subscription re-issue the first year of Action/2000AD as a flipbook prog by prog - so in week one you get 2000AD prog 1 back to back with Action 1.
I think a lot of people would love the subscription idea of a 'first year' collection of both titles - back to back - so they couldn't be mistaken for the originals...