XF 1.2 Twitter Embed and Sitemaps

Users of the forum are asking me to bring back twitter embed, they used to do it just by pasting the tweet URL. Is there a way to do it now? If not, will it be in 1.3?

I found a Sitemap add-on in resources, but it looks like it might not be supported well based on this comment.. Will sitemaps be coming out as part of core, if not, can you point me toward a recommended add-on?