New vs old Magnepan models

I own a pair of 1.6qr Magnepans purchased in 2002. They are still in great condition and don’t have any physical issues due to age that affect the sound as far as I can tell. I love the Maggie’s sound and want to stay with Magnepan but I am curious if the new .7 model may be a good substitute for the old 1.6’s. I know from reading the Forum and other sources that the 1.7’s are a definite improvement over the 1.6’s especially in the treble area, but would consider the .7 due to it’s smaller size and better integration in my listening room setting since I have to move the speakers back and forth from the rear wall when using them. My listening/living room is large, 17’+ width x 26’ long x 9’ high. For critical listening, I sit about 9’ from the speakers that are placed 4’ from the rear wall and 8-9’ apart. I use the speakers with older Sonic Frontier tube separates and an older Belles Hot Rod 150watt solid state amp. In summary, can the .7’s compare or exceed the 1.6qr’s on sonic quality and sound stage?