I'm going the closed road rides around Loch Ness, South Wales & Manchester next year an MAY do the Tour of Flanders ride, but not the full distance. Will do some of the smaller sportives run by clubs. The MAMIL club Shropshire Hills ride is excellent, but hard and the Wiggle Cheshire Cat is good early season test.
Two lads I work with are doing the Etape Extreme in Wales. 220miles and 20,000ft of climbing I believe and they are doing La Marmotte as well. Nutters.