The Marvel Heroic Roleplaying game is produced by Margaret Weis Productions. Or, at least, it was. In an official blog post, they stated;

The economics of licensing a tie-in product is always something we have to weigh carefully. We brokered an admittedly ambitious license with Marvel. Our first event, CIVIL WAR, was successful and well received, but it didn't garner the level of sales necessary to sustain the rest of the line. We've learned from this and are taking a very different approach with the other licensed properties we're bringing out to you in the next three years. We believe we created a great game. Those of you that have supported us have been terrific, and we appreciate you. But, unfortunately, we will not be bringing any new product out under the Marvel line. We know this affects our customers. Those that have pre-ordered Annihilation will receive a full refund or a credit worth 150% of their Annihilation order to use on existing or future product.

Which means if you do want to order the Marvel RPG game, you've basically got until tomorrow before they are withdrawn…  In forum posts, representatives stated;

this is not a decision that was made lightly and we fought to keep bringing you more Marvel product.