I do not think that totally grade separated will have any impact on the LRT technology.
What could change the technology is the shutdown of the existing SRT. I do not think it is on anyones radar that this will be shut down for 3 years to convert to LRT. If this shutdown can be made into a major issue during a campaign, I could see some attempts made to drastically reduce this time. Skytrain technology is the easiest way I see that this shutdown could be significantly reduced. The closure of the SRT will be a huge issue, but it will probably not surface during the campaign of 2014 since it is still too far away.
The other thing that may come up is the extension of the B-D subway to STC. Council voted on this to be studied and depending on who does this study, they could probably come up with whatever result they want. At about $2B, it is quite an expensive option.