kingdom<internal , i think is offensive points
offpoint.png
You can't spend those, they are just a statistics of current troops in the kingdom, the only way ti make sense is if they are talking about VP (Victory points) generated each day through tresures 
Btw I can understand why this change may be interesting for current (or old) players, but I honestly don't know how can attract new players to revive the playerbase 
I think that a good way to attract new and old players (not an alternative to your proposal) could be to fix the app, allowing it to be really useful and thus attracting also payers which are not going to use the browser, also would be nice to improve the chat system (both in-app and in-game) in order to facilitate player dialogue and guiding, and maybe introduce a new possibility along dual and sitting, like an "observer", so 2-4 slots to add people which can just take a look to the account, without the possibility to act, build, send attacks or others, and in this way they can observe and guide other players (right now you need to ditch a sittered player in order to get access, and maybe you are not eager to do that also because you don't fully trust the person you are allowing into your account)
But i can create a new post with those idea in case, just pointing out some other ways in which you could move 