Europa has 13½% of Earth's surface gravity and no atmosphere, so an optimal landing on Europa might be similar to a classic propulsive Lunar landing. But with up to an hour communication time lag, very different surface materials and topology, radiation and gravitational environment, insolation, temperature.
What are the main similarities and differences of a Europa lander compared to Surveyor, Viking, Philae, Huygens and other landers? How would it be designed? Congressman Culberson who has promoted a NASA Europa lander says 17 minutes into this interview that it could use both the skycrane of MSL and the "airbags" of the MERs. I'm not sure that would be suitable for an airless world, and especially not in combination.
Would a mothership Jupiter orbiter have to reconnaitre Europa's surface during flybys before releasing its lander, or did Galileo map good landings sites? Does the terrain on Europa allow for a rover?