This Subaru video shows 97 km/hr @ 7300 and 61 km/hr @ 3200:
That means redline is approximately at:
2nd 61 MPH
3rd 88 MPH
If we assume typical differences between gear ratios, we can speculate:
1st 40 MPH
4th 116 MPH
5th 144 MPH
6th 181 MPH
For highway cruising, that puts 75 MPH in 6th at 3100 RPM.
Peak wheel torque per gear, rounded to the nearest 10 lbf*ft, assuming 15% drivetrain loss:
1st 1700 lbf*ft
2nd 1110 lbf*ft
3rd 770 lbf*ft
4th 590 lbf*ft
5th 470 lbf*ft
6th 380 lbf*ft
Note that 4th-6th seem a little tall, but that's because 3rd is a bit tall in the video. Before noticing that 3rd was in the video, my guesses were:
3rd 86 MPH
4th 113 MPH
5th 141 MPH
6th 176 MPH
Obviously redline won't be reached in 6th gear, and possibly not in 5th if rumors of a 136 MPH top speed are true. However, some of those rumors claim top speed is due to fuel cutoff (supposedly at 7450 RPM), which raises some questions.