It works the other way around too! You can now reroll a 1750exp weekly quest and get the 2500exp ranked one. – March 29, 2021 at 11:57PM

I don’t know what the odds are but I completed the 2500exp ranked quest yesterday and today I rerolled a normal 1750exp weekly quest and got another 2500exp one.

That would mean you could potentially get extra 1500exp per week if you managed to reroll both of your normal weeklies into them. Which is tedious, requires you to not complete your normal weeklies on purpose and only ever complete them at the very last day.

Because it’s so tedious, I’d expect Blizz to change it so that can’t happen as you generally don’t want the optimal strategy to be boring as it makes your minmaxing players burn out of the game faster.