Re: EMS power
I was actually considering posting this exact topic yesterday night but did not think I had a decent enough theory to do so. I had recently re-read that chapter too and was wondering the same thing. The two translations were "gave birth to a new dojutsu" and "gave birth to a new eye technique", heres the Narutobase link:
My first impression was that the new Dojutsu was simply the EMS, but that may not be the case becasue after stating the MS became permanent, it says that that is only half the story. The fact that it shows his EMS on this individual panel gives reason to believe that it is simply referring to the EMS, but it does sound suspicious to me. Really the only other explanation is that the new dojutsu was rinnegan, but considering what we know about it, it is unlikely that the same way to gain EMS is how to gain Rinnegan.
Basically when I think about it, it seems most logical that Kishi is simply referring to EMS as the new dojutsu and perhaps there is one or more unique abilities that are spawned in an individual upon awakening EMS in addition to their original MS abilities.