I love this idea. If they do something like the account bound luck.
Maybe they could add a new rare drop in fotm that you would consume to add to your AR total, or allow us to salvage all those ascended rings we get from end rewards that we will never use to get this consumable as well.
So at least the new players would have to still do the low level fractals 1-9 as they build up there AR and learn the mechanics for each instance as they progress.
I only get ascended items for my main character I take into Fractals. There is really no other reason at this time to have ascended items unless that character does fractals. Then after that character has done a lot of fractals you should have tons of Pristine Fractal Relics that you can help to get your ascended gear for other characters.
Just look at it as one character then after a few weeks of doing dailys and getting PFR you can start to look at your other characters and find it is not so bad after all.
I like everything in your post but, this one strikes me as the most important to GW2 as well as any game really.
I think new players feel like they are so far behind when they join because they are starting a year after the game is released and try to rush everything.
IMO GW2 is one of the few games where you are never behind because everything you need is available.
Also I agree with trying to find a good guild or at least some people that you can run and learn the game with.
With the scale down for level 80 players it makes it nice for new players that we can come back to a lower level area and not just dominate everything. The level 80's IMO are still a little too powerful even with the scale down but, it is still nice that you can over aggro and die if you are not somewhat careful.
This is a very fun game to play and offers a lot for those who are willing to slow down and take it all in.
Don't worry about getting to max level in a day, it will come with regular game play and having fun.