Hardcore Friday Linebattle is @ 8pmEst. on Fridays
Also, a Friday 8pm Est. battle would cut into the events, because a typical Linebattle lasts one hour and 15-20 minutes, and the bulk of the other Friday Events are @ 7pmEst.
So...if you started a new Friday Event at say, 8:20pm Est., that's pretty late, but wouldn't cut into the three other Friday linebattles.
It would probably kill the Hardcore Linebattle, the most established Event in NW history. So if you were feeling benevolent, and factored the other Friday Events into account, the FSE event would be starting around 8:30pm Est. after everything is handed out and good to go, meaning that it will end around 9:45-10pm Est. Which is pretty late for the bulk of the NW population to stick around on a consistent basis. Ideally you WANT the the 7pmEst. time slot, which is has around 3 other Events in its slot.
Which is why I think Friday would be a bad night to host this.
This is the reason I stopped hosting my "Super Top Secret Thundersnow Friday Linebattle Extravaganza". There's already way too many Friday Events, and they all siphon off each other the few remaining regiments that still exists. So what you wind up with is 4-5 Events with 70-100ish players each Friday.