I don't know a lot about the specifics of the failure, but it seems like if it were possible (or financially practical) to fix the front end, then Ram would have done that instead of buying back the truck at blue book +10% which is the figure I've heard. Is this an option given to you instead of a buy back? Is the fix so expensive (and extensive) for them that they would rather buy the truck back, OR is this the mandate from NHTSA?
I think you should wait awhile before making a decision. Let the dust settle some and find out more about the problem to better identify your true options. There are enough affected Rams in the field, maybe some third party vendor will market a fix for a reasonable price (if Ram doesn't).
Then, I think your decision should be based on two factors - 1) do you want, and can you afford a new truck (assuming you get blue book +10%); 2) How do you like your Ram otherwise?
To answer your question, I have had 4 other trucks of other brands. The Ram I have now is the best truck I've ever had and I really, really like it. If I were in the same situation, I would do everything I could to hang onto it. I feel like the engine, the power train and the body integrity are superb. If I had to sell it because of a NHTSA mandate, yes, I would trust the brand and I would probably buy another Ram.
You didn't say how many miles you had on your truck or what kind of experience you have had with it, but the buy back is a good opportunity for you if you want to get out from under it. The resale value of that series of truck will probably plummet if you don't sell it back or fix it.