BlackBerry has been in a little spat with T-Mobile right now but it seems like they are coming to some terms. The latest update is T-Mobile CMO Mike Sievert confirmed on Twitter that they are working on a BlackBerry 10.2.1 update. Supposedly T-Mobile is delayed because they are working on Wi-Fi calling integration. Sadly this means the update will only be coming in March. Still that is better than never.
Thanks TB for the tip!