Should the Xbox One successor launch pre-emptively?

[JRPGfan]

Not unless the technology is ready for it.
You can make a pre emptive launch "if" the newer and better tech is there, but sony are takeing their sweet time about useing it for a new console.

If you launch preemptive, without the technology being ready for it, it ll either be expensive, or be a side grade, which down the line will bit you in the ass.