I like all of your ideas but I would like to revise them a little and see what you think. We would see a description of each skill in the Player's Handbook like this.
Keep all the progressions for skills at +3 or -3 so they are easy to remember.
The skill titles would be like this. You earn +1 to a skill every other level-up.
You get an automatic +3 when you are trained, which makes you Proficient. Once you get +6, you earn the title Adept.
Novice +0
Proficient +3
Adept +6
Expert +9
Master +12
In the Dungeon Master's Guide, there will be each skill listed with an Easy DC10, Moderate DC13, Hard, Very Hard, and Formidable description.
Then there will be a 4th Edition Style listing of 3 possible described outcomes.
If you roll -3 or lower and fail, there are negative consequences.
If you roll the target or 1 or 2 more than the target, you succeed.
If you roll +3 or higher and succeed, there are benefits.
I'd much rather have them be more like degrees of success/failure.
I like the general idea they are moving toward but I don't like the fact that abili checks are pass/fail checks.
I'd much rather have them be more like degrees of success/failure.
But what about degrees of success?
Warder

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.