So as someone who defended a Tower for 8 hours, heres my thoughts on a very important issue that I noticed.
The biggest issue I noticed was the sheer lack of income while defending a Tower/Keep. I spent 8 hours defending a single Tower with a group of friends and a few random people here and there. We didnt have that many people with us and every time we did try to go maybe attempt to take something else, enemies would show up, but on to the point. If enemies are fended off youll get a bit of XP/Karma/Coin, escorting a caravan will get you some as well. But if youre sitting around your Tower actively preventing any sieges that do arise, youre not exactly going to be raking in the Coin needed to upgrade/upkeep or pay for your repairs when you do die.
So would it be possible to increase the Coin across the board for defense and caravan escorts in WvW so that you can even hope to be able to help out? Im not saying jack up the amount here, maybe 10-15% would go a long way. People attacking other points have a huge advantage because theyre out constantly killing NPCs and taking points whereas those actively defending are getting the short end of the stick here. Even something like having random attacks on the caravans would go a long way in keeping people entertained while doing so as well as providing a source of XP and Coin.
This is an issue that will persist for a VERY long time considering as you level the cost of Coin to repair goes up based on your gear. I think that if you want to WvW youre going to need to focus on attacking for a very long time in order to have the income to even defend. So heres my solution:
Make a single new currency that is used for purchasing blueprints, building upgrades, and gear repair in WvW. Make this new currency drop off of players and WvW NPCs, give some to people when they capture points, but also give some say every 30 min to people who have been within a certain radius of a point in which their realm has captured.
Furthermore, allow players to transfer this new currency to Gold and vice versa with the same supply & demand system the Gem store uses. This would allow people to cash out their WvW time for Gold to be used elsewhere in the game and also allow people to use their Gold from PvE to get up on an even footing with people whove been WvWing for a long time and have tons of this new currency. Now, before someone screams BUT THAT WOULD BE PAY TO WIN!, please remember that you can transfer Gems to Gold and buy blueprints/gear repairs right now anyways so this would make no difference either way.
Alternatively, you could also maybe make it so denizens of the Mists move into areas held by your realm after a certain time and start paying a citizen tax to the players that are around them for keeping them safe. Maybe give players some small amount of coin every time the score is tallied (5 min) as long as theyve been actively participating in the defense of the Keep/Tower?
Ultimately, the easiest solution on your part is to bump up the coin rewards for defending and caravan escorting. I was mainly just tossing out some random ideas, you guys are the game designers and understand it far more than I do. Tell me what you guys think and if you had a similar experience to mine.