I honestly feel like the capacity will be fine. It sort-of looks like they can park a train out right before the switch.
Sure, the old ride had six trains but usually 1 was in transfer, 4 of them were busy doing f*ck all and 1 was actually launching every minute or so.
... or all 6 of them were doing f*ck all and maintenance was there wondering if they should put in their 2 weeks or actually go and fix Dragster for the 3,786th time that week.
As for the ride, it looks cool. Hopefully Zamperla impresses everyone.