Come on, would I resort to such underhanded tactics?
And the expansion/DLC is a good question. I can see several perks to building the franchise off expansions and DLC rather than sequels.
1) More frequent releases, combined with cash flow allowing continued support for patches (and eventually modding?).
2) New gameplay features and gear could be retroactively used in the original story.
3) More justified in focusing on content creation in expansions; since sequels are usually expected to make significant refinements to the core gameplay.
Then again, there are also reasons why a straight-up sequel might be better.
1) Longer dev cycle.
2) More time to refine gameplay and fix things that didn't' quite work right.
3) Obs is already pretty awesome at creating good core content, often polish is more the issue the mainstream complains about.
Not that I'm claiming to answer Pop's question in any way, but it's interesting to consider given that the basic AP package seems like it will be a fairly focused bit of storytelling.
I think both have their quality points. I guess the major difference is that with DLC you get the content faster.