Villa and Fulham have Tuesday games on the following midweek so the Chelsea and Fulham home ties are unlikely to be on the Sunday. Also Chelsea and Fulham don't normally play at home on the same day in league games and Fulham have the 2nd leg of the EFL semi on the previous Wednesday whereas Chelsea play theirs on the Tuesday so I would think Chelsea-Villa would be the favourite for Friday night and our match either Saturday evening or Sunday. Forest are at home on the following Tuesday so if they win their replay the West Ham tie can't really be on the Sunday either, which I think would make us favourites for Sunday.
So after all that I expect we'll be on the Thursday night! ;-)