From the following thread on Motorola Triumph owners forum, one may decipher that official update to Triumph is probably in works. As always they are not providing any ETA. Refer to a chat session between Triumph owner and Motorola support person post. At least the the support person has mentioned about work in progress for the update in the chat. It is on Page 2 of the post.
https://supportforums.motorola.com/thread/56547?tstart=0
As always, Virgin Mobile USA will need to work with Motorola and Google to release OTA update.
Should we expect update in next few months?