I understand your concerns but to me, there's nothing to worry about until there's seriously something to worry about. That's just a teaser image for a Thor-based event. We're getting a new ongoing with an AWESOME creative team and all we know so far is that he'll be involved in this story somehow. More on this below.
Saw this. Very exciting.
And here's below. Daredevil taking a Heimdall role for an event like this is something that I am extremely interested in. If that's even the case. It could just be a fun reference for the image.