Already true for JAR class 2, and was when I went for my last medical aged 36. I was delighted to be told 'see you again in 5 years'.
Not everywhere in Europe.
I understand this forum section is mostly a UK thing, but we are indeed talking about EASA-induced changes after all, therefore all of Europe will be affected (albeit from slightly different starting points).
My last class 2 was issued for just 1 year as I had already hit 40, the next one will be for 2 years.
Ciao,
DG800