Coming from the official UFS: Universal Fighting System Facebook page:
"Mega Man Tins! Where are they?
We know most of our fans know that there are indeed Mega Man tins floating around since we pre-viewed them and raffled several at GenCon 2013. So why aren't they available for purchase yet?
The short version of that explanation is that our printer has informed us of a quality issue with the actual tin itself (not the contents). They had them recalled on the week that they were going to ship off, in order to have the tins fixed. We have been informed that they will be ready for ship from China in the next few weeks again, and we can expect them for a holiday release now.
We hate delays, and luckily this is just a mini release that this happened to, but we are very glad our printer was able to catch last minute quality issues and fix them on their own dime.
Cross your fingers and hope this mini release does not get hit by any further delays. In the mean time, we are looking forward to the Ruler of Time expansion for KoF XIII, and can't wait to see how these RoT mechanics effect the standard Meta!" -Your Jasco Games Staff
Source: UFS (thanks, Amir!)