[Folos]

As an almost daily traveller of the now almost 1/4 of a century old 14X series (namely 142/143 on ATW) i'd love to known when they're being replaced - and possibly what with?

I can't think of any current DMUs suited more perfectly than the 142/143/150 used on south wales commuter lines, so what would fit the bill and when would you more informed folk expect they will be replaced? (I read somewhere that they could be in service for another 10 years!)