My preference would be multiplying the daily rewards by 7 and making them weeklies. I'm really not a fan of daily rewards. I feel like the initial idea behind rested XP and time gated rewards was to try and level things out a little between players who have a lot of time and players who are more limited. They make your initial few hours of gaming much more rewarding than the following hours. Daily rewards goes completely against that design and go back to rewarding players who can throw a lot of time at the game and leave other players feeling like they're missing out.

As an alternative to changing dailies to weeklies I'd probably implement a system like they have in Heroes of the Storm whereby you get daily quests but will store a number of them at a time so you don't actually have to play daily. You can play every three days and still get the same rewards after completing the tasks.