If they’re smart, they’ll do it essentially like a soft reboot, in that all the questions fans have about Palpy, the Force Dyad, Rey’s power-level, etc will be secondary to basic facts and there will be no expectation that you need to have seen the Numbered Episodes recently to follow the story. Basic facts would be:

Rey is seeking to establish a New Jedi Order
After the events of the last few movies (and please, don’t watch them again because I’m sure Disney would like to sweep TROS under the rug), there is no dominant political power in the galaxy
…that’s it, I think

And then, if they’re smart, they’ll never make another Numbered Episode again