I don't understand how this timeline thing is confusing people.
MoS - > BVS -> JL
The only thing I find confusing is who's going to be in justice league. Cyborg is heavily hinted to be in JL, but doesn't receive his film until after Shazam (who I'm assuming won't be in JL1), Green Lantern also won't make an appearance until 2020.
I think the immediate outcome of BvS plays into JL (bigger threat/cliffhanger at the end of BvS). Batman, Superman, WW, Aquaman seem to be atleast locked down for JL at this point, with Cyborg and Flash seem incredibly likely.