I still think that this mode is a knee-* reaction to the popularity of Valorant. The legends’ abilities are not designed for the mode. We saw this as early as season 11 where Ash was passive-less in the mode. The leaked next set of legends would also not fit very well with arenas. This might have been a big LTM like Control forced to become a permanent mode to get a piece of the pie of that Valorant hype.
If you look at their schedule, it definitely fits into their huge LTM release schedule of a new big LTM every 2-3 seasons.
Season 9 - Arenas
Season 12 - Control
Season 14 - Gun Run
Season 16/17 - The mode I’ve posted about in a separate thread (won’t say it since some don’t want spoilers).
I have nothing against the people who love playing arenas but Respawn continues to say that we can’t have other modes permanently because it will divide the playerbase with too many modes. Sacrificing Ranked Arenas in exchange for a rotating LTM would be the best route for everyone in my opinion.
This weekly rotation of LTMs for the month of October will be a litmus test of that rotating LTM possibility.