Hi @Riccardi,
On the submission list questions, @NateWr has been working on a replacement implementation that will be included in OJS 3.1 (our next release). This may resolve some of the issues you mention – perhaps Nate can confirm.
On email recipients, we’ve had some community interest in adding this feature to the 3.x line of releases, but haven’t prioritized it yet. If you have particular use cases, they would be useful to hear.
Regards,
Alec Smecher
Public Knowledge Project Team