Some of us think $50k per month might be a bit difficult but I am sure in the future this will be implemented because total wager and users continue to increase. Just look at the total weekly bonus which is slowly increasing, which now reached 21 million or in a month 80 million this is an indication of the spikes that occur in each period. 7-8 years since Stake was launched and I can't imagine for the next 7-8, yeah this is just my imagination.
Well, I think the best solution would be to create an automated system for the reload. They can apply a certain amount of wagering requirement to those users who have VIP host now. 'As example: wager at least $10k in this month to keep your VIP host. You have to renew (reset) your reload manually from the VIP tab on the next month if you don't meet this requirement.'
It could be effective to reduce the load from the VIP host. I don't see any better option to take care of the huge loads in the future.
Having automatic system will be better and it can be applied for all bonuses they have such as monthly, weekly or any other bonus. I have to mention shuffle as an example, a casino where I can claim any bonus directly on the VIP page/tab without any bonus link like what Stake do so far. I am sure it has been suggested to Stake since few years ago but seems that Stake still prefer to use the manual system by creating link for most bonuses except reload which should be requested through VIP host (for those who have host).