So, the main issue with the current artifact power is that people feel they are behind with alts or by starting later. This got me thinking:
What if next expansion introduced something similar, but account wide? Think off the following:
1.The basics work exactly like right now, maybe some tweaks if necessary.
2.Some of the bonusses are character based, these take like 2 months to unlock in total and are just for the character you are playing. The last trait opens up a bonus speeding up this process by 100% for the rest of your account.
3.After this there are various account wide bonusses both in power and cosmetic, think the current bonus that offers a +0.5% damage every trait. This is instantly for -all- your characters! This is the longer expansion wide progression.
4.These account wide bonusses are sometimes alternated by character-only bonusses, these are purely cosmetic and are aimed at folks just playing a single character. This are mostly alternative bonusses for whenever an account wide bonus wouldn't do anything for a person just playing one character. Think of a title, a tabard or a toy.
5.Other bonusses can be more cosmetic or offer a fun feature for your account that you'd unlock. Who wants a service that teleports you to the nearest archeology digsite once every 30 minutes?
6.Power gained through quests and such give the full 100% power the first time you use it. For your alts it gives 100% if you work towards your character bonusses and 25% if you work towards your account wide bonusses.
Some of the account-wide bonusses you should think off: An extra character slot, increased bank space. Allowing you to start a single character at 60, a free month of gametime or a weekly reset of a non-current expansion lockout of your choosing (allowing you to get loot twice from an old raid in the same week). On top of this some power-boosting bonusses think bonusses giving you +0.5% damage, higher Ilevel drops from worldquests and increased chance for items to warforge in dungeons. Maybe even halving the required WQ's done for an emmisary quest if you already did it on another character on your account.
The great thing about this is, catch up for alts, progress for your main and plenty of rewards to progress through in an expansions duration. After the expansion new rewards can be added and old rewards can be kept.
What do you guys think?