Drop the 4 iron, not the 3. Honestly, when was the last time you had a perfect 4 iron into the green? Bend the 5 too, get lofts of 20/21-25-29 in your long irons. That way your gaps will be pretty even, given that the 2h is a lot longer shaft than the 3i. That part of the set is tricky, more about ball flights than yardage IMO. If you're outside of 200 yards, even pros are lucky to hit the green and will usually be happy anywhere close. I'd rather use my 3-4 longest clubs to give me the most options off every tee; I have a driver for max distance and height, a 3 wood for fades and to prevent going through doglegs, a hybrid that's really easy to get good distance out of and goes high, and a 3 iron for a 230ish low bullet I can control very tightly or a soft shot off the tee. Though the hybrid is best off the deck, I can hit the 3 iron fairly well and the 3 wood tolerably off the deck when needed. I don't need 4 clubs I can hit over 220 off the ground. And if I'm hitting a 3 wood from 270 out, I'm not concerned if it runs through the green or comes up short or anything as long as I have a pitch at the flag.
I do need options on tricky par 4s to give me the best positioning; remember there are usually 3-4 par 5s per 18, but 10 or more par 4s that are all too easy to bogey even if they're under 400 yards with a poor tee shot. And of those par 5s, maybe one or two of them will actually be scoring opportunities. Most par 5s aren't realistically reachable anyway, and may need a sensible tee shot with a layup. So that's really one or two times a round you'll need a long shot off the deck unless the course is brutal or you mess up big time. But you have 14 or so tee shots and most of them don't need a driver; in fact you can aim at better targets with other clubs.
I love my 3 iron and wouldn't give it up for a hybrid personally. I like using a 2h rather than a 5 wood, but nothing replaces the long iron off the tee. You'd just end up hitting your 4 iron on really tight holes and getting less distance with the same accuracy.
I go for 3 wedges and a traditionally lofted 9 iron at the top of my set, though. You'd basically be at similar lofts but not the same clubs.