The NFBC is the clear leader in the realm of high stakes fantasy baseball. The NFFC is also the best high stake fantasy football event, in my opinion. Still, the fantasy sports industry is devoid of a combination of the two into one event/championship.
Enter, the VFSC - the Vegas Fanatasy Sports Championship. Run by Krause Pubs of course.

The hardcore fantasy players among us, I think they'd like the idea of an event where they can, essentially take everyone on H2H. Win the league, and you win the grand prize, well, make that win both leagues, both baseball and football, and you win it all! The nice thing here, is the element of control, no more worrying about what OTHERS do, in leagues you aren't in, where you have no control, nope, win your league, and win it all. It's totally up to you.
It would all depend on the numbers, but for baseball, you would compete ONLY against those in your league, against just 15 others. Then the top 2 from each league(would depend on how many signed up, ie. 7 baseball leagues, you'd take the top 2 from each league), at some point close, but prior to NFFC draft weekend(as early as the All Star Break or as late as week 20 or so would be the cutoff), would go to Vegas again in the fall, the same weekend as the NFFC, and compete for the VFSC.
The baseball drafts would take place the same weekend as the NFBC, either thursday, friday, saturday after the NFBC, or Sunday after the Ultimates.
So many ways you could slice this, depends on if enough people like the idea, and then upon what kind of entry fee/prize structure was the most palatable, but to just throw something out there for starters, if you had 105 signup for $650 each, that would be enough for a $50K grand prize to the last man standing at the end of the football season, plus a small 2nd place prize to the runner up.
Obviously, this would only appeal to those who already planned on participating in both the NFBC and the NFFC anyway and wanted to augment their Draft experiences with a little more fantasy fun, as well as having more control over their destiny in a truly unique competition.