Sorry to be a smart ar*e, but I predicted this a while back. It was only a matter of time that some corporate sells the DED ( or whatever they call themselves these days) on the advantage of a big LED screen, with all the advertising revenue that will potentially come with it. It not a matter of if, but when. I am just surprised it hasn't come sooner.
One thing is for sure, I will bet 100% it wont be replaced like for like, either that, or an LED screen will be hired in for the TT and Manx.