Hi Ross,
Thanks for using WooCommerce Tickets.
I can try to help you out with this customization with some tips.
Yes, since our plugin does not support a Season Ticket you could do it by creating a Product in WooCommerce and putting it on the Events. It would not be tied into our Attendee List though.
The easiest way to add a product would be through the WooCommerce Product shortcode.
[product id="99"]
You can find more information on that here:
http://docs.woothemes.com/document/woocommerce-shortcodes/
User Voice
Season Tickets sounds like an interesting idea so if you would like to request that feature please head to our UserVoice Page and add your own or upvote that feature as they will increase the chances of it being added to a future version.
http://tribe.uservoice.com/forums/195723-feature-ideas
Let me know if you have any follow up questions.