A lot of people are currently arguing that rents will increase at a quicker rate than they have in the past. I don’t share that view, but I also don’t think they’re likely to go down. We still have wages and population here and the rental market is directly tied to those trends. Unlike with an owner, a tenant doesn’t have any interest in the property beyond it’s immediate use as housing.
It’s hard to imagine a decline in rental prices that would be so much and so fast that it would make a difference to you over a 2-year period. The sales market would have to lose 30% or more during that time period in order for it to affect the rental market at all, and even then I doubt the rents would decline even 10% at that point. A 10% “loss” of a $2,000 monthly rental payment over the course of a year wouldn’t even equal the cost of moving.