Take it with a grain of salt, but this is per my ticket rep today... Possibly no increase in ticket cost. I am in Terrace Reserved Outfield. Doesn't look like they will fine tune the tiers, so get ready for another batch of overpriced Sunday and summer weekday games.
"Thank you for your email. I do not know exact pricing yet as everything will be released next week. I can tell you that the tiers will be similar, and you can expect your seats to not increase in terms of total cost. With the team expected to be active in free agency to compliment our prospects coming up, the secondary market should see a good bump in value next year. So re-selling should be easier for you in 2015. You do have the option to get into a Night and Weekend (called the "Combo") package. It is for the bleachers only. If you are interested, you will be able to make that switch after you give your deposit for 2015. You will be getting more information on all of this early next week. I have not heard anything for concession discounts, but if there are any programs, I will make sure I communicate with you."