I bet the relief valve is adjustable. I do't have a service manual, but someone else might have an answer. I would suggest starting a thread on that...
But be careful! It is set where it is for a reason. That said, it doesn't look like any substansive changes will be in the 3x20s, just the loader... Deere has always been a little conservative, but they needed loaders with some curve like NH but that were stronger like Kubotas....
There might be a little window where the 4410 will be more valuable. I bet the 3x20s are already starting on the line, or will be very shortly, but not yet available, but with no real production, there could be a shortage of midchassis Deeres. Might be the best time to sell. Don't expect me to do that, though. My wife might leave me if I sold MY tractor... (Just kidding! _ I hope...)