I highly doubt the Bundeswehr will give the contract for the next standatd assault rifle to H&K. H&K and the Bundeswehr are right now bashing each other with lawsuits. Basically the Bundeswehr is saying that H&K did not deliver as agreed, while H&K is fighting that back with a lawsuit. While it is also not completly confirmed, there is a high chance that H&K tried to influence the german military intelligence office to start a investigation against a journalist who was working on that issue. All this is makes it relatively unlikely that H&K will really be considered when it comes to the next rifle.
The german ministry of defense has already stated today that want to have "a wide range of possible suppliers" and considering the position H&K had before, this is pretty much a punch in the face for H&K. They also want to have a new rifle "ready" for 2019 and beside the controversity about the G36 it is also time for something new. The G36 is basically a child of the post-cold war era and not really fit for a modern army anyway. However I wonder what they will get. Pretty much every project of the Bundeswehr in the last years have been a complete desaster (Eurohawk drone, Airbus, Ground Vehicles etc.).
MK 16 maybe?
For a DMR they still have the G27 (which is based on the HK417)