No, It is not a swap from PKB to PKC.

It will likely be a PKB(Current Chain) to PKB(Smart Contract Chain). PKB holders will given some free PKC once the tokens have been released.

Heres a brief breakdown of what each part will do..
PKB tokens - Digital Currency for parking ticket purchases (Currently on own chain, may move to smart contract blockchain with PKC tokens)
PKC tokens - Digital tokens distributed by crowdsale on a smart contract blockchain used to operate the autonomous parking database (The ParkingChain)
The ParkingChain - Decentralized Database managed by Smart Contract - PKC is paid into SC to get read/write access, to register a node etc. and PKC is paid out of the SC to incentivise the nodes.
ParkingZones - Smart Contract which allocates unique parking zones; renewal fees & deposit required
ParkingAdmin - Opensource SDK Including Enforcement APPs, Admin/Financial/Management Dashboards
ParkingMeter - Opensource SDK which brings both PKB and PKC together by creating development kits with PKB as their default payment method. PKM will allow all methods of payments to switch over to using PKC to store ticket data and calculate tariffs by providing unrestricted opensource iOS/Android/WIndows/Linux/MAC application examples. We will also develop a modular main board to replace the main board in physical ticket machines which will run on the PKM module so an entire car park could be switched to digital ticketing without huge expense while keeping traditional cash methods. There is also the possibility of turning them into Digital Currency ATM's - They have printers, internet, coin validators and we'll be replacing the mainboards so why not?

So...
PKC is trying to get all data together in a single place so one car park could offer Ringgo, Parkmoble, ParkByte and Cash - It doesn't matter to them, their enforcement stays on the one platform - Customers could choose which provider they wish to use rather than installing multiple APPs because different car parks only use one provider.
PKB is trying to replace all Cash and Credit Card payments because they just cost too much and are not secure.