If the reboot goes ahead, and SMG plays an older, wiser Buffy who shows up a few times to give advice and encouragement to the new Buffy (named after her, of course), I hope they keep her romantic life as vague as possible. The original Buffy didn't want to know too much (if anything) about Giles' dating history, or her own mother's, and why should the new one?
I hope the most we get about the last twenty years of our Buffy's life are some scattered hints that she's in a long-term relationship with somebody who used to be a vampire -- "a vampire with a soul?" the show's new Buffy can scoff -- but who became human again "decades ago" after fulfilling the terms of an ancient prophecy. I hope they have the original Buffy let slip that she met her partner when she was a high school student, but it took her a while to realize that they were the one. That they used to be evil but have since reformed and help her fight against evil and save the world. That they're the most important person in her life after her sister and her nieces. I hope the Bangel and Spuffy fans spend hours refighting old wars about which character Buffy is "meant to be with", both convinced that the show is building up a cameo by their preferred (now older and in-universe human) leading man.
I hope that, in the last episode of the first season of the new show, our Buffy's phone rings during a key bit of exposition -- in the library, ideally, because it won't be Buffy without one of those -- and she apologizes, saying that she has to take it because "that's my wife". I hope as she walks out of shot, phone in hand, we see her smile and we hear her say "hey, Harmony". And I hope the show never, ever expands on any of that again.









