Re: Bf beyond 12 months and return to work...
i think you can totally do this, too. you'll want to pump pretty regularly while you're away, but by 11 months your supply is mostly established and you shouldn't have too much trouble switching back to nursing on demand while you're home. it's also WAAAAAAY too early to worry about a bottle; i agree with the others that you can likely skip the bottles altogether at that point, but in general i see too many mamas borrowing trouble months in advance of when they'll need to actually address a stage. her taking a bottle now has little to do either way with her taking a bottle in 3 months.
i think the *main* issue is the disagreement with DH - i assume he'll be the primary caregiver while you're at work? but again, you don't necessarily need to make that a big fight now, about something that's going to happen in 3 months from now. lots of DHs seem to have some sort of arbitrary nursing cut-off in their head, and then when you reach that cut-off point they realize that their baby is no different at 11 months vs 11 months + 1 day (or whatever), and that it makes sense to keep nursing.
Nursing, pumping, cloth-diapering, babywearing, working professor mama with the awesomest SAHD ever.