This is the only thing that can drag hoteliers' robust business volumes down

No thanks to 3,000 new rooms.

According to DBS, with higher business volumes, hoteliers are expected to report better results in 2014, with the Upscale/Mid-Tier hotels delivering the strongest rebound in RevPAR (c.3-4%) after a dreadful 2013, where RevPAR declined by >10% due to weak business travel demand. 

Here's more from DBS:

A key limiting factor to a more bullish forecast for RevPAR growth is the completion of close to an estimated 3,000 new rooms (c.5% growth in supply).

This is where we will see major hotel chains opening in the CBD (Sofitel So Singapore,
134 rooms; and Holiday Inn Express Clarke Quay, 442 rooms) and Orchard Road (Hotel Grand Central, 990 rooms; and Traders Hotel, 502 rooms).