Is it ever stated how long it takes to get somewhere without the relays? I do think it's reasonable to say they could get back home in a few years ala how long it took the reapers to get wherever after the Arrival DLC.|
I also think all the options allow for shep to come back. 2 of them are effectively him ascending and the other he technically lives and being a bit of a Stargate fan, one of the characters in that ascends but can give himself a human body again if so wished. Wishful thinking maybe and highly unlikely but I can live in hope!
Xbone - Revenge First,
Wii U/PSN & Steam - Revenge_First (Matt on Wii U as well)
3DS - Matt - 1246-8695-7316