True, D&D has been around for 50 years. First under TSR as 1e and 2e, and then under Hasbro/WoTC as 3e, 4e, 5e and 5.5e. However, the collapse of Hasbro is more likely to bring down WoTC IMO. D&D would still exist for those who role-play it as a TTRPG or as a VTTRPG.