Hi,
The integration with JomSocial (and Community Builder) are already in our TODO list. We have to finish some important features before that, there are some dependencies as you can imagine.
About HikaSerial, the integration with HikaMarket is already there and we will continue to improve it, adding some interfaces in the front-end for HikaSerial, letting the vendors configure and use some generation or consumption plugins.
For Joomla ACL, HikaMarket is already compatible with. We are working on new features in order to simplify the links between the ACL of HikaMarket and Joomla.
I know Kunena and I have made some plugins/integration for it. I have some difficulties to understand what you want to do with but I guess that won't be a problem.
For Sobipro, I don't think that is the right way for an integration. Let Sobipro uses HikaMarket modules and display some fields yes. But I don't know why HikaMarket should use/call Sobipro for his vendor page.
HikaMarket is not re-creating wheels and making integration with other components is really important but before doing this, some features are need. We can't integrate with JomSocial and Community Builder if we don't have a finish vendor listing for example. And we are currently working on it.
To summarize, I have updated the HikaMarket todo list with your ideas and we will provide new integration as soon as the component will be enough mature, with enough feature, to accept them.
Regards,