Riot might plan to turn RP into Orange essence.

And you base that opinion on what exactly? Following your logic Riot MIGHT PLAN to add two lanes to Summoner's Rift and remove jungle

I doubt it simply because they are actively working on a 2nd game atm and RP as a shared currency would work better across games.

Hahahaha no.

Would simply never happen. There is no way unless honor capsules and chests just stopped giving skins/orange essence.

Riot is literally trashing their game balance to appeal to casuals just to get more money they are not about to jeopardize their cash cow of rp.