What other space probes are en route to a mission?

I can’t believe I never heard of the Rosetta space probe until a couple of days ago. If it really launched 10 years ago, then I have to wonder what other space probes are on route to cool missions we’ll hear about only days before their arrival. Is there a list of these somewhere?

Yes, there is a list:

There’s only a couple missions en route now. New Horizons is going to fly by Pluto next year, and then maybe some other Kuiper belt objects in the next decade or so. Juno will enter Jupitor orbit in 2016.