Couldn't this be easily stopped if there was a limit on the difference between two blockchain heights was put into effect? because as far as I know the litecoin client currently accepts the longest chain as the most valid one. So this would prevent something I would call "chain hopping" on the client.
uh......no
Because you "plan" to have more than 50% of the network. But this would stop the current miners from moving to your chain, would it not?
That was somewhat what I had in mind.
I think trusting the developer isn't that of an issue. You all doing that every day by not reading the whole sourcecode and every commit the whole time.