Now that I can’t run any more, my horizon is multi day cycling and I’ve ticked the Raid Pyrenean which was the bucket list item.
Raid du Massif Central was much better IMHO.
Later this year I plan to do my own ‘Raid Cymru’ (6 days, 600 miles from my front door) and next year I’ll be 55 so planning either NC500 or Raid Alpine - the former looks favourite as some mates are interested.
Longer term, some more distance swimming if I can get motivated to train and more multi day hikes (once the lad has grown up a bit and can carry my gear!).
Did the Welsh 3000 in 14 hrs end to end many years ago (Pen-y-Pass to Aber), a good day out - none of this summit to summit timing for me 
There are so many great multi-day hikes too. Patagonia will be on the list again if I can persuade the Mrs