Hahahah u just made me sway towards buying A7ii... I like the color tone of photo from A7 series
Anticipation is best way to overcome AF speed, plus I use spot AF/touch AF alot these days to capture moving kids. Else face detection actually works pretty well.
Between em5M2 & EM1, EM1 will bring better value as u mentioned if u get 1240 package...em5M2 only comes with 14-150f4-5.6 lens. And since its new for both lens and EM5m2 u likely are paying more.
The diff btwn em5m2 & em1:
1. Pdaf on em1 which is useless if u dun have 43rd lenses
2. Well defined grip on em1, which tranlsate to a bigger heavier body
3. More customization on em1
4. With v2 firmware theres tethered shooting which can be useful for studio work, if u do that
Now with em5m2, theres some improvements on top on em1
1. Better stabilizer even in movie
2. Electronic shutter, up to 1/16000s
3. 40MP hi res and 64MP on raw. Limited to tripod or stable shooting only
4. Swivel instead of tilt screen.
End of day, only u can decide base on your needs. Have fun deciding.