Cyber will definitely blossom, 100% sure, the location is just too strategic for it not to (just south of KL, right beside administrative capital, well built township). Question is, how long will it take.
It all depends on government policies, cyber was built to be the IT capital of Malaysia, but as you see, msian govt always adds other MSC status IT-areas and this dampens the progress of cyber (example TPM bukit jalil, i-city, upcoming bandar malaysia). In this case, of course companies would open their offices there as its closer to city center (which helps moving around because of established transportation).
Cyber needs a lot more connectivity, the proposed Putrajaya stop for MRT is a good plan and can spur growth in cyber. On the downside, some of the studios, soho, sofo, sovo, so-whatever are too many and.. in my opinion, overpriced.
With that said, we need people to move in slowly, and make it a thriving township. If all goes well, that will be in 5 years as most current developments will be completed, and newer IT infrastructures will reach maturity. If all doesn't go that well, hmm I guess >7 years, possibly 10.