Hi @kaushpra
Welcome to the forum, and thanks for the question.
There are no plans for supporting these at the moment.
If you’re interested you can start here: https://camunda.com/developers/how-to-contribute/ and if you have any questions about specifics of contributing you can post here on the forum
We do play close attention to supported environments that the community is interested in using and while very occasionally we hear people interested in using Sybase there really isn’t really much interesting from the overall communty or our customers at the moment. This could always change of course.