You are using be subjunctively in the second sentence.
Subjunctive expresses statements about "one's state of mind" or something "contrary to fact." (definitions from Wikipedia article on "English Subjunctive".)
However, you are not expressing a state of mind or something contrary to a known fact. You are saying something has not happened yet. So the subjunctive should not be used. (For something to be "contrary to fact" the fact in question must have happened. For something to be a "state of mind" it must be related to a wish, intention, dream, request, or similar. At the very least connected to a person, which is not happening when you say "It is too early to conclude ...")