Could write an Applescript app called iTunes that sends you an email then invokes the real itunes. This is a concept. Don't know if you can get the real iTunes to work.
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The real way of doing updates is to get an mdm that supports wireless updates.
MDM -- Mobile Device Management
MDMs
Airwatch, Meraki, MobileIron, Profile Manager on OS X Server, or Zenprise
For a comparison see this page:
http://www.enterpriseios.com/wiki/Comparison_MDM_Providers
Airwatch
http://www.air-watch.com/
Apple Configurator and Apple Profile Manager
"Apple Configurator makes it easy for anyone to mass configure and deploy iPhone, iPad, and iPod touch in a school, business, or institution." Limited to Macs. Connects via USB cable.
http://itunes.apple.com/us/app/apple-configurator/id434433123?mt=12
"Profile Manager lets you configure OS X and iOS devices so they�re set up to use your company or school resources and have the settings, apps, and books your organization requires. Profile Manager creates settings and preference bundles for devices and deploys them to devices via the Mobile Device Management (MDM) service." Requires OS X server.
http://www.apple.com/uk/support/osxserver/profilemanager/
GroundControl is an alternative to Apple Configurator. "Enterprise-scale iOS provisioning, update, supervision, intelligent policies...all in the cloud."
https://www.groundctl.com/
Meraki -- A free MDM [ expect lots of email and phone calls about upgrades ]
Read the product overview. Click on "get started now" to sign up.
https://meraki.cisco.com/products/systems-manager/?ref=YZRzCR
Video's on how to setup and use Meraki.
https://meraki.cisco.com/blog/2012/08/how-to-get-the-most-from-meraki-systems-ma nager/
MobileIron
http://www.mobileiron.com/
Zenprise
http://www.zenprise.com/