Signs for Traditional Mandarin comming back as technology grows?
No, and a definite no. Although there are voices about restoring traditional Chinese, these proposals are considered unpopular and expensive. Even top-ranked students of Chinese literature are unable to pass a basic traditional Chinese test. Even if the computer technology is advanced enough to fully replace handwriting, people are too used to simplified Chinese and will not bother changing the writing system again.  

See this page:Wikipedia: Debate on Traditional and Simplified Chinese Characters