Even landing will be a huge problem. Think about the difficulties with the launch pad on Earth (engineering a launch pad for a heavy rocket is almost as hard as engineering the rocket itself). Well, to land a heavy rocket using retrofiring engines will require an engineered landing pad. Probably not quite as fancy as a launch pad, but you've got humans on the ship, so it will need to not bury itself completely, or melt the surface and weld itself to it, etc etc.

And that's before you start to think about a launch pad for the return mission. So you'd probably need to have launch a series of robots and factories to build this in advance. Maybe, but we haven't even come close to robots building something of that magnitude on Earth, let alone a planet that's quite different.

So, never say never, but it's a _long_ while off yet; long enough that social upheaval due to climate change will probably put a pause on any efforts for quite some time.