More major data centers are on the horizon for the Reno-Sparks area, and the next announcement to follow last week's news from Apple is expected soon.Economic development officials won't disclose the identities of the companies that are seriously looking at northern Nevada as the home for major data centers the huge bank of computers serve that host so-called "cloud" services but at least one company may be very close to announcing its plan.And a couple more plans are well along, says Mike Kazmierski, president and chief executive officer of the Economic Development Authority of Western Nevada.The arrival of multiple data …