I think both classes are very strong at the moment in Euorpe.
The 1/10 off road is the most subscribed class in all of Euorpe.
The UK National scene has seen a 10% rise over last year and the Europena Championship has has the most people want to enter I have ever seen with 180+ wanting to take place.
My region in the UK, the South East has seen it's best numbers in years with 40+ being a low attanded meeting and 70+ about the top.
1/10th off road is becoming more popular also because it is a very fair formula, you don't need the best of anything, there are many competitive manyfactures and equipment.
I see both classes being around for a long time