Any chance of a child chain using zk-SNARKS? Will be possible to create a blockchain out of the box?

Yup, I mean those.
They are not only for trading, you will also be given the exact number of Ardor forging tokens in the upcoming Ardor platform. You probably know already

Speculation and most ppl seen it running on testnet.

But asking seriously what is the advantage of Ardor that would support investing in it and not in similar projects? What is this superiority?
Any honest answers?

The advantage is scalability, this is the problem Ardor is solving. This is in the opening post in this thread.

From the current 3 tps in Nxt and Bitcoin to 100 tps in Ardor but using similar amount of hardware resources as Nxt and Bitcoin are using.

What similar projects do you know that will allow for this number of transactions per second and can run on average consumer hardware (important for decentralization) and are blockchain (decentralization and the most tested cryptocurrency tech)?

Hello.

XEM has not relation to ARDOR but if you are interested in XEM i invite you to visit
the official NEM thread here https://bt.irlbtc.com/view/654845.0

You can find more info there.

Are there any plugins for NXT or Ardor that one can look at the source code for? I am really interested in looking under the hood and learn a lot better through code than the API. Especially anything on phasing would be extremely helpful.

Ardor goin to moon' best developers​ team and good community .boom Ardor soon bcoz new blasting project assign Ardor platform