Can Twitter Really make a Twitter Edit Button?

There were a lot of tweets floating around by people (including me) about #TwitterEditButton which was started by Arron Hirst, people think that Twitter should introduce a new option to edit tweets they have already published. No one can deny the importance of "Twitter Edit Button", But can Twitter really make it?

The real question is Would it be technically possible? Yes, Twitter is working on "Annotated Tweets" feature which allows you to annotate a tweet with structured metadata. Also, Twitter has the ability to undo tweets. In brief, Twitter can make just a simple edit button but it may not be for long periods! So Twitter, how about an Edit Button?