I hope so; it would be a shame to see them go third party.
The Xbox One was meh, but the 360 is in my top 5 favourite consoles of all time, and I preferred the OG Xbox over the PS2 and Gamecube.
Still, it really does feel like their current spiral is inescapable; the Series is dead in the water, retailers are apparently starting to drop physical Xbox games, and their mindshare is arguably worse than it's ever been.
I guess you could've said something similar about the Wii U in 2015 or the Gamecube in 2004, but Xbox doesn't have Nintendo's history of catching lightning in a bottle via innovative hardware solutions, and their awful management since 2013 does little to inspire confidence.