If I was in this hypothetical world, and in this world I was into Thomas the Tank Engine and friends. Not knowing any of the releases of this new line I looked up all your picks above. Out of all your picks and there was never any previous releases of Thomas trains, tracks or accessories, That 5 in 1 Track Builder set looks to be interesting (although flimsy)
http://tttetrackmaster.wikia.com/wiki/5-...uilder_Set
http://tttetrackmaster.wikia.com/wiki/5-...uilder_Set