Mattel announced today that the second batch their Masters of the Universe Classics Mer-Man figures will go on sale at Mattycollector.com on April 29th at 12 pm EST . They also assure us all the bugs and glitches have been worked out with their ordering system.
Mattel also mentioned that a new 'subscription' service is being developed and will be added soon for the remaining characters. This will be set up for normal type figures and not for exclusives from any major conventions such as SDCC or Wizard World.
You can read more about Mer-Man going on sale and the new 'subscription' service over at Mattel's facebook page.