As someone about to upgrade from Rp to R6 within the next 6-8 weeks… I have no idea what to do
Look at the list price of the R6 and think that the Mk II will be at least half a year to a year at this price or even 15% more.
If it really has the R3 sensor, it might be worth waiting.
If you struggle with the higher price, go get R6 now.
From my experience (trying out in shop) the EVF, the AF and the sensor performance of the R6 is much better than your RP.
If you are willing to wait to buy best for higher price, just wait.
Maybe with more information, the price of the “old” R6 might drop…