Generally I'm not in favour of more 'variants' simply because pretty much every niche you can think of is already covered and I don't see it as a good use of development time creating yet more very slightly different versions of existing ships. I do like the Mamba (which is to all intents and purposes an FDL variant) but other than that, the opportunities for genuine diversity within the ship catalogue have already been pretty much fully exploited now.
That said, for someone who likes medium ships and Imperial ships, it's a bit of a shame that after the Courier the next choice is a large pad ship with limited internals and appalling hardpoint placement, especially when you consider the Clipper alongside the Python which lands on a smaller pad, has an additional class 3 hardpoint with far better convergence and 10 x optional internals. The fact the Clipper has a class 7 internal is only a bonus if you're going to use it for combat and even then you get more bang for your buck using a class 6 shield on a Python than you do using a class 7 on a Clipper. So in short, an Imperial medium pad ship would be nice.