Speed up planeswalkers rotation

Morphis

Instead of adding and removing a planeswalker each week I think it would be better to add and remove two instead.

At this moment 4 planeswalker are always in vault and each one sits there for 4 weeks.
Each week one gets out and one gets in(starting of cours from the one that has been for longer).

I think it would be better to have 2 get in and 2 get out each time.
This would reduce the max time needed to wait for a planeswalker to reappear in the vault.
Right now we have 9 planeswalkers(not counting the base ones and saheeli).
This means up to 9 weeks to wait for your planeswalker to be back in vault right?
It is going to increase with saheeli and future additional ones.

Doubling the number of planeswalker cycling each week will cut in half the max time wait for the planeswalker to show again in vault.
A little more than a month is much more reasonable(and will still increase in future but at least not as fast as with the current system).

Also at each time there will be more variety in the shop if they keep on sale each planeswalker for 4 weeks like now. That would offer 8 walkers to choose from.

If that goes against their marketing goal, the weeks can be reduced to 2 resulting in 4 planeswalker being in vault at any given time.(same as now)