The debate this time will, in fact, be the numbers of CVNs. But lurking in the margins is the debate over their usefulness, at all, in the future. So, to go back to the slam dunk comment. If the debate is over how many CVNs we need to go forward in the current and forever future type of conflict (according to the chowder head in question) then just ask yourself if the op tempo is satisfactory. If it is not, then we can't do with fewer CVNs. If the debate is over the unique value added of CVNs the just ask if the CVNs proved vital in the GWOT over the last 7 years? If so, then we can't do without them. This whole thing reminds me of the cell phone commercial depicting fire fighters in Congress. This isn't a hard decision. It doesn't have to be complicated. The debate clubs in Congress and the various think tanks and consultants make it complicated. It ain't.
You've hit the issue smack on the head here - if you believe CVNs are vital, then we barely have enough as it is. If you submit that in the last 7 years that having 11 carriers has not been vital, then we have a debate. I'll bet there will be those in the incoming Administration who will entertain the latter position, and will seek out analyses that support it.
For a good example to the counterargument to your approach, check out the bottom of page 5 in this link: http://www.gao.gov/products/T-NSIAD-94-171. A bit dated, but typical of the sorts of position papers that will be floating around again shortly. The key line is at the top of page 6: "Our work suggests that the Navy could reduce the number of carriers and achieve substantial savings." You can bet the Air Force Association, AUSA, CDI, and others will likely come out with similar statements and supporting analyses. Simply saying "you're wrong", or "OPTMEMPO won't support that" won't cut it. The answer to the OPTEMPO issue will be quite simple: gap the coverage requirement. Hopefully the heavies in OPNAV see this storm coming, and are teeing up the 40lb brains and teaming them with the Public Affairs and LL types - this is going to be a battle royale, and the stakes couldn't be much higher for this community.
The fire fighters in Congress commercial chaps my analytical ass. "Want clean water? Yep. Good roads? Yep. Hey, this ain't hard." Well wait a minute - you don't have enough money for everything you want, so which is more important? What about blind orphans, or the crippled veteran's widows? Yes, this is hard....
p.s. When everyone's bored, check out this link: http://www.gao.gov/products/NSIAD-98-1 This is an analysis of why in 1998 they concluded it was cheaper to build and operate conventional carriers rather than nuclear powered. As an exercise, read the document and come up with a coherent response to the major points laid out in it. When done, compare your results to the DoD response (p. 147), and then GAO's follow-up on the comments. This is the level at which this debate occurs - we all need to have our analytical shit in one sock to engage effectively at these levels.