Sorry for a late reply, I tried to get an update from the EC here, but did not get one and thus should probably answer here. We do not include the EF 3.0 method yet since the available LCI data are also not consistently available yet in version 3.0. The data management in EF is a bit surprising, as you probably know, there are different nodes who somehow self-declare the version of the data they provide, and they are not in sync.
The ecoinvent chemicals node, for example, declares version > 3.0, https://ecoinvent.lca-data.com/:
thinkstep nodes declare to be in version 2, http://lcdn.thinkstep.com/Node/:
We do not get an offical "package" from the EC, but the idea is, as far as I understand, that we download everything individually to make it available for openLCA. In absence of a consistent 3.0 inventory package, it does not make much sense to include an updated LCIA method package (I think - if you have comments, let me know).