I thought it should be out in April-May but I don't see anything about it yet so I was wondering if It got cancelled or they are planning to run it on June ?
No, not to my knowledge. As far as I know, it would take a certain % of consensus to enable this feature, but we are seeing some delay in this consensus to form, but then again I never fully understood how segwit was going to be deployed into the main net. I think 0.12.1 already has segwit but it's just not deployed yet? something like that.