Have you played the beta? If you can run the game on your laptop at a standard that you deem is acceptable then perhaps you should go for it. However there should be no doubt that this game will of course run at a much higher standard on your PlayStation than to your laptop, that's obvious. It is unfortunate that we still have no real clue as to how TESO will work on the PlayStation 4's or the Xbox's controllers, I'm assuming that the touchpad and voice commands respectively will be used, if the touch pad is used for instances of using the cursor in mouse mode and the menu then it'll be great.
Personally if this was me and I wasn't planning on buying a computer capable of at least playing last gen titles like Skyrim or Fallout with good/high settings then I'd just wait two months and get on it PlayStation. It is just two months after all, plus the beta event which PlayStation should be getting any time after the PC launch (I'm presume).