https://wccftech.com/future-connected-xenoblade-chronicles-definitive-edition-length/

The additional Future Connected epilogue included with Xenoblade Chronicles Definitive Edition on the Nintendo Switch can be completed within 10 to 12 hours.

Xenoblade Chronicles Definitive Edition launches next week for the Nintendo Switch, and among other new features, is the additional Future Connected story. A glimpse at the new scenario was provided at the end of the game’s latest trailer, which we’ve included down below.