Will 6 Creedmoor go the way of 7 SAUM?

[Refugium]

Less and less factory rifle offerings are available in 6 Creedmoor. Will 6 Creed become a niche cartridge like 7 SAUM? 2 of the best cartridges ever but they are becoming reduced to custom builds and a cult following. Will there be a new factory 6mm or will .243 Winchester remain the only widely available cartridge? Will there be a 7mm short action magnum to compete with 7PRC? Will 6.5 PRC still be around in 25 years?