We have secured the fourth edition of the workshop at AAMAS 2015 which will take place in Istanbul, Turkey. The CFP will be posted here soon but you can have a peek at the draft CFP on the HAIDM 2015 page.
On a related note, the JAAMAS special issue received 22 submissions out of which 6 were accepted. These will soon be advertised on the site. Given the success of the special issue, we aim to secure a similar venue for the next edition of the workshop.