The North Face Singapore (25/50/100k) 13 October 2012
Another ultra event in Singapore, part of the well-known The North Face series. The organisers state:
The exact route will be kept confidential until a few weeks prior to the race. The route will be a mixture of trail, road, gravel, clay, stone tracks that will pass by Mandai, Woodlands and Bukit Timah.
More information here. This goes on my shortlist too. Registration starts on 18th May and there's an 'Early Bird' discount until 31 July.