I did not read through every upgrade and all of the perks but this does seem like an interesting way to add a little extra to the skill. Honestly I'm glad that now there might be some choices to be made rather then a pure meta choice for 99% of engagements. Sacrificing a 4th skill to boost 3 might be considered in certain maps for example.

My opinion.....
-make perks usable only at higher levels, 76 and beyond possibly to limit the effects on low end pvp. Also I think all of these choices might be a lot for new players and it would give them some time to feel the skills out before having access to.perks.
-change the skill/perk tree to have skills along the top and perks to branch off below that. Seeing the skills in the middle and perks coming from both sides seemed really off to me.
-these buffed skills are not necessary. Every map is an instant kill right now. If elite elder woods is going to be VERY hard I can see the use but right now nope.

Again these are just personal opinions