How is anyone going to be able to replicate DMR (the paper OP mentioned)?
It's impossible to get legal access to the Lehman database.
And the ICE database is not in WRDS and is very expensive to access.
So future bond research is going to depend on having a lot of money to get the ICE database and the willingness to use a database (Lehman) that the researcher won't have legal access to?
Doesn't sound like a very wonderful future to me.