Don't worry, the megaserver will ensure there will always be other players around.
Also remember the PS4 version is not released until June, the PC version in April, so if either version is going to be more polished at launch, it will the PS4 version as they will have fixed all the post launch bugs and issues by then.
I'll be on the PS4, but I was buying the PS4 anyway even if it wasn't for ESO, and the PS4 is more powerful then my current computer. I'm sure there will be plenty of people on the PS4.
I just recently realized that ESO is created for console players. All facts say so.
You referring to the fact it wasn't going to even be on console until they had been in development for 4 years?
It was created from the ground up for PC, it just happens that the design philosophy of the game will make it very playable on consoles without much tweaking.