Something to also mention is that according to Ash OSRS is actually growing. I fully expect OSRS to actually take over RS3 even more so than it has in the coming years, so i've decided to just suck it up and level my original account. I've been putting off since OSRS came out, fucking dreading requesting and all that; in the end I think it'll be a lot of fun.
People coming back and just getting back into the swing of things is a good thing and you should encourage your other friends to do the same.
OSRS' dev team is leaps and bounds better than RS3', they actually listen, so I can only see good content coming down the pipes in the months and years to come. Meanwhile EoCScape gets more game-breakingly OP garbage content that just widens the gap between newcomers and veteran players.