There are solid plans on the way. But this is very initial phase of planning, so just putting everything on paper in advance.
Dedicated servers will be there and already that work is in progress for quotes, supports, etc. But for ICO webpage and user control panel can go on two (or more) separate servers for start. Eventually, it will be migrated to dedicated servers. It would give us some realistic facts, if we know, what resources are needed for servers.
When you say that there may be lot of requests on server(s), it looks like, it should have good network bandwidth. But from technical stats, need to figure out sufficient resources.