I will second the recommendation for EVSportline. I got a set of their first batch for my R1T, and they are showing little if any signs of wear - and they get salt spray all winter.
I took a demo drive in a 2026 R1S today and the Rivian employee told me that the release of the Gen 3 R1 is probably 2 years out.
I'll wait until final specs on the R2 are released to decide which route to go.
I normally keep mine plugged in for much of the winter also. I usually only drive it a few days a week, but it is nice to have the truck plugged in so If I end up wanting to go any significant distance on a cold snowy morning I can use the app to precondition in the garage on shore power prior...
I got back yesterday from a 6-day 2000-mile round trip from northern MI to eastern CT. Hotspot worked great for us. Longest trip we have taken so far in the R1T - it continues to impress as a road tripper!
Having the NACS adapter proved to be very helpful as well, but the RAN locations are...