A leaked inventory system screenshot obtained by TrustedNerd.com suggests that Rogers Wireless could launch the BlackBerry Torch on September 15th. The screenshot is from the Future Shop inventory system rather than Rogers itself but there is no reason to suggest that the retailer would have a different launch date.
One intersting conjecture: Could the phone description ‘Rogers BB Torch 9800 Presale‘ (my emphasis) be an indication that the Torch will show up for pre-sale on the Future Shop web site a few days early?
Separate rumours suggest that TELUS will launch the Torch a day later on September 16th. Bell is also planning to offer the Torch.