Looking at the poll results, I’m actually in agreement with the majority that voted. OMD as a story will likely never be undone.
MJ and Peter could end up together again somewhere down the line (I really don’t understand what’s being done right now with MJ, Spencer got them together only for MJ to somehow marry someone else ) but I don’t know if Marvel will re-install the marriage.
OMD was what…16 years ago? The character has been single longer than he’s been married (that’s taking into account his pre-marriage years) and I’m not sure Marvel’s creatives have inclination to go all the way back to bring back the marriage.