It would be very surprising and likely doomed to fail if Triumph put the same engine in an America or Speedmaster that they have in the Street Twin. Some specs below.
I too would like to see an 11 or 1200 cc engine in the new cruiser, however, if they boosted the current HP and torque by ~20% using a variant of the 900 engine, that would not be bad.
Interestingly HP and torque numbers seem to be removed from the Triumph web site and PDF brochures currently.
2017 Street Twin
HP: 55.00 HP (40.1 kW)) @ 5900 RPM
Torque: 80.00 Nm (8.2 kgf-m or 59.0 ft.lbs) @ 3230 RPM
2013 America
HP: 61.00 HP (44.5 kW)) @ 6800 RPM
Torque: 72.00 Nm (7.3 kgf-m or 53.1 ft.lbs) @ 3300 RPM
