Very hard to say without knowing your swing, but about 10 yards would be typical.

Roughly 115 but get a gap test done to be sure.

I used to carry a 46 and 50 before at stock loft. I would get 100 with the 50 and about 115-120 with the 46 (but wasn't as consistent with the 46). I play a 50-08 at 48* and it swings better than a 48-08 because of the bounce, the extra 2 swingweight points and 1/4" shorter shaft. I would get 110 with a stock 48-08 and I get 105 with the 50-08 bent to 48; however, I am much more consistent with the latter (not to mention more accurate on pitching and chipping).

I have had 46-50-54-58-62 before. With the 42* 9 iron replacement, that is SIX WEDGES. My lofts are 42-48-53-58-64 and distances are 125-105-85-70-50.

The rule of thumb is for every 4* increase in loft it approximately equals 10 additional yards. I find this to be pretty accurate for an average effort swing, good contact, ProV1 ball, on a Tuesday etc, etc, etc. As they say your mileage may vary.
Whats frustrating is that on Trackman I can hit my 52* anywhere from 90 to 120 yards depending on how hard you swing and how much you de-loft the face.
I agree with RKelly - get a gap fitting done to be sure.

I would recommend going to a 54 to 56 degree. I see a lot of the pros bags having four degrees of loft between the pitching wedge and aproach wedge then six degrees of loft between their sandwedge and lob wedge

Should get about 115-120 with 46*. I had a 46 and 50 and that was my exact distance.

6* loft difference is about 15-20 yard gap.

I have a 50-08 bent to 48 and I get 105. My 42* club (9 iron replacement) is 42* and my distance is 125-130. 54 = 85 yards. 58=70 yards and 64 = 50 yards. I have the 54* bent 1* strong.

I personally fare better with a 50-08 bent to 48 vs using the F grind 48*. There is a swingweight difference of 2 points and a length of 1/4".