MarineLink is reporting BMT has been awarded a contract to provide support for a planned re-powering of the Barque Eagle.
The $1.5M (approx.) project involves engineering, design, supply and logistics support to install a new MTU 8V4000 engine, ZF gearbox, propeller, automation system and other related components.
Reportedly the work will be done at the Coast Guard Yard, 2017-18.
You can view the specs for an MTU 8V4000 engine here (pdf):
With 1340 HP it should be a substantial upgrade over Elmer that powered her when I was a cadet. My guess is should be good for at least 13 knots.