When a new avatar of a hero is released, the Silver price will drop for older avatars, but not the Gold price. Further decreases in the pricing on heroes will be discretionary and not based on release or time.
All prices will remain at their current levels through 5/17. At that time we will be changing pricing to the new guidelines. These changes will be made retroactively (even for avatars that have been 500 Silver for a while), so purchase these amazing avatars now and enjoy them at the discounted price!