Doesn't fit the lore so much, I think. I could be wrong, the whole expansion event is not too specific on that.

There is lore, the Nexus is essentially the Seed. Seeds get sent out to start sucking up planets and gaining the Turinium. If you watched the ign videos of Homeworld you start off from a massive base, no crashed ships in sight. They are such different games.

It would be cool if should you gain a Turinium victory something actually happened to show the seed/nexus start to convert the planet or some other visual cue that what is happening is actually super destructive and not cool for the galaxy.

If all of the bases were crashed ships, then they would all look boring as well.

If you put just about any RTS under that kind of magnifying glass it won't hold up. 

But I agree, and have said elsewhere how it could be done, that being able to move/teleport the Nexus would add a lot to the game. I hope it comes in at some point, obviously post-release at this point.

This is really easy for the Dev's to do, just keep the Nexus but create a small base around it with 1 AA Turret and 1 Smarty and small walls or something like that.

Just for the Nexus.

Take this example from Homeworld: Deserts of Kharak, Base, it looks cool.

I am no comparing Homeworld: Deserts of Kharak with Ashes of the Singularity at all, they are 2 different games, i think in Homeworld: Deserts of Kharak you can have 100 Units Max per side.

So Ashes for me will be way Funner to play Compared to Homeworld.