The 77G is reduced to 4 as KQL is currently flying 828/825 to YYZ. They really are going at a rapid pace especially with 2 former 77H.
The question will be KQM when they get to that. M is after all the 13th alphabet and N is the 14th. My guess would be half the earlier KQ* birds will be painted in new livery, other half not at all.
I am sure KQL has Wifi and I'm sure KQJ as well.