What resolution?
Only if you really want that RTX, I would wait until manufacturers like MSI, EVGA, ASUS and such release their cards. It won't be a big difference, but they look better(that's my opinion) and they're slightly better.
But to be honest, I wouldn't buy any RTX anytime soon. The price you pay for the performance you get isn't good at all. Maybe consider the GTX 1080ti. The GTX 1080ti is even slightly better in some games than the RTX 2080, and costs way less. If you really want a newer GPU, wait for the RTX prices to drop or even until there is a complete new Nvidia GPU series.