I think Maguire being out is the big miss from a United fan's perspective as I'd imagine Southgate would put Shaw in with Maguire given they are already a partnership.
Last game's starting XI + subs was: Spurs, City x 4, WHUM, Chelsea, Leeds, Athletico, B'Dortmund, Everton x 2, Villa, United...probably the most broadly English team I can remember from a huge selection of clubs and nice to see some non English clubs in there as well.
Last Euro's starting XI + subs was: City x 2, Spurs x 5, Chelsea, United x 2, Liverpool x2, Arsenal. (amazing when you contrast the Spurs presence then to now)
For reference: Hart, Walker, Rose, Smalling, Cahill, Dele, Dier, Rooney, Sterling, Kane, Lallana + Milner, Wilshere subs.
Re Henderson this upcoming season will be make or break at United I feel - if he can perform well and cement the No1 at club level I think he'll be England No1 for ages. Everyone wants a sweeper keeper these days and that then helps us with Maguire/Shaw maybe even AWB coming into contention.