Your device may not make the cut. As d360 points out, 4GB storage models may not see W10M outside of the Insider program.
Check Here for how to put your phone on Insider: Windows Insider (Phone) | MobiFAQ
As for dates... Stay tuned to our News Blog. They will shout out all OTA rollouts as they happen by model and country. Our members are great, many spotters will report in on conditions.http://www.MobiFAQ.com
Additionally, we have a dedicated thread: W10M release dates? Answers inside...
Check in there for updates.
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