I am not sure what you mean with "SQL Server Schema parts" that is a term that I am not familiar with. Please educate me on what this is or means.
With regards to plans to add Oracle support, we cannot make announcements on behalf of other companies. Microsoft will not develop providers for other data stores, but we are working with all major vendors and 3rd parties to make sure all major data stores are covered.
The index that gets dropped in the demo is a bug in the system right now, we only need to update text based objects like functions, default constraints, check constraints etc when renaming a column.
-GertD