No, not as far as I am aware.
Previously, the loss of Facebook/Instagram embeds due to Facebook side changes but that is coming back with IPS 4.6 so that won't be in there.
The only additional item currently on the table, and guaranteed to be in, is this.
I'm looking at the "twitch.tv & mobile links" situation too, but no guarantees there at all.
I'm looking into adding iframely support too, as a 'last resort' for embeds.
Possibly unfurl too; but my initial testing appears to indicate that it doesn't like trying to provide preview links for sites running IPS...irony!!!
I am open to adding anything that is reasonably within the scope of both the application and what is possible- it needs to be suggested to be looked at. If there is anything that you are specifically looking for then bring it up now....once the following is out of the way, this application is next up and most of the work needed on it is done and dusted, so a release 'as-is' won't be far away.