The battle of the radio broadcast standards will definitely begin to play out in the next few years.
DAB looks like a certain loser (if I were a bookie I wouldn't be taking bets on that), as Analogue FM, DAB+, DRM+ and Internet Radio can all better and more cheaply foster their own niches here in the UK.
Unlike Betamax video players DAB receivers will still work on the Analogue FM band, so people will not have entirely wasted their money (altough their energy bills will be larger than they otherwise could be) as long as the cultural elite don't ram through their irrational programme to switch off all national Analogue FM broadcasts in 2015 or shortly afterwards.
This EBU document (DIGITAL RADIO DISTRIBUTION IN EUROPE: Feb 2013)
"3. When DAB coverage is not possible, to use DRM as defined in ETSI ES 201 980 for digital radio broadcasting in the frequency bands currently used for analogue radio broadcasting;"
Read "not possible" as economically uncompetitive.
If this recommendation is agreed across Europe, it will effectively mean that all DAB broadcasts are likely to cease outside large conurbations as a combination of analogue FM and DRM+ (broadcast via the same transmitters) continues to reign supreme for in-vehicle listening.
Remember all mobile phone radios are Analogue FM receivers because of the low power requirements. DAB would be hopeless in mobile phones, from an energy consumption point of view.
The question is how will people will be able to receive DRM/DRM+ in the UK if the authorities don't allow these receiver capabilities to be added to the minimum vehicle and non-vehicle UK radio receiver specifications.
I found reference to above EBU document on the "Q&A Digital or FM" page on the following website
It also says that Norway is going to make a 3 or 4 digital channel DRM+ broadcast trial transmission in Trondheim on 94.0 MHz