August 2020 - last edited August 2020
I know that devs at Respawn are focused on short queue times and low-latency, to keep new players engaged in their game. They even wrote in their Season 6 ranked blog post, "we have to balance queue times and latency for all players involved." Balance meaning they need shorter queue times across every rank.
With cross-play, you can have both fast queue times/low-latency and fair matchmaking. I really hope they don't go the route of decreasing queue times/latency even further. One huge opportunity with cross-play, imo, is the ability to raise overall player counts and improve matchmaking with the same queue times as before the update.
Edit: One more change that could improve the solo experience is to completely separate solos and 3-stack premades. That would be amazing.