I never like to say never because then it happens, but I think as long as non-diesel coaches and trailers still need to heat with LP, that sector of RVs will never go entirely electric like the DPs with diesel fired hydronic heat.
However, with the companies that started 25lb BBQ tank swap outs like Rino, I did see a lot of the LP refill stations shutdown because they didn't have any real demand without the BBQ tanks.
I still rely on my ACE and so far they still have it at Flying J which makes it convenient.