I had a think and I wonder if more than one option would be a good idea. Perhaps we could start with 3 different year long challenges. Maybe something like:
1. Weekly. The P52 because it works great for people just wanting to showcase a photo as well as giving the option for a project like the one Susan did this year with the teacups.
2. A monthly scrapbook one like the one suggested by Rene that could focus on each month – people could personalise it or make it about the month.
3. Fortnightly. Something like the A-Z challenge but with a specific theme like PLACES. The somewhat neutral theme of places would allow for as much or as little personalisation as anyone wanted. Each person could choose their specific theme such as a local area, region, country, a continent, rivers, waterfalls, lakes, temples, cathedrals, villages, oceans, cities, castles, tourist attractions, holidays travel, home, space, parks, historical properties…