Around us. So Westcott and Hort, but huper (over, in behalf of) as in many MSS. These prepositions often interchanged in N.T. MSS.
Whether we wake or sleep (eite grēgorōmen eite katheudōmen). Alternative condition of third class with present subjunctive, though eantė̇eante more usual conjunction (Robertson, Grammar, P. 1017). Used here of life and death, not as metaphor.
That we should live together with him (hina hama sun autōi zēsōmen). First aorist active subjunctive constative aorist covering all life (now and hereafter) together with (hama sun as in 1Th 5:17) Jesus.