The thing that would deter me from considering it, if it were to come to fruition, is the reasoning behind it. It's basically AEG wanting to recover the losses of the Michael Jackson shows by leaning on other big name artists.
Don't get me wrong, I am extremely sceptical that this will ever come about (even more so now that The Sun has published something!

) but if a pig actually flew past my window now and the announcement of the residency did arrive, I'd be seriously worried that they'd be doing the shows at 50% due to the fact that the gigs serve the primary purpose of bailing out AEG, not because Jovi opted to suggest them.
We talk about how easy it has been in the past for the band to slip into auto-pilot mode and yet this would possibly be the most likely scenario in which that auto-pilot button would be pushed. A warm up exercise for the tour next year perhaps.