Hello, Marco.Morais.
Thanks for reaching out to our Microsoft Community Forum. Please accept our warmest regards and sincerest hope that all is well.
We understand that you'd like to know about the roadmap for Jira integration in Microsoft Loop.
As explained in the link below, Microsoft Loop is still in Public Preview. As such there are still features that need to be improved on and thus answer to questions like yours are still not documented yet.
As such, I highly recommend that you provide this experience of yours as feedback to our developers directly. They'd love to hear from you about what’s working well, what’s not, and any ideas for improvements including possible new features and functions. Your input will help us improve the user experience for you and all users worldwide.
To send us your feedback, go to the bottom right corner, select Help> Give feedback.

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Thanks again for choosing Microsoft! We’re here when you need us.
Respectfully,
Glenn Rue
Forum Moderator
Microsoft Community