basically they are coming out and saying that they are looking to create permanent franchises and that new investments into a high quality game are always encouraged
here's the quote that ign is using to extrapolate that red dead 2 is on the way
Franchises that we think can be permanent, whether that's the Red Dead franchise or the Borderlands franchise or the BioShock franchise or others.
with this and then the trademark that was refilled for bully, seems they are looking to get more rockstar games out of rockstar than just banking on gta 5
once the games are great it is a smart move, especially a sequel to red dead, as that game sold a ton of copies.