So the long term plan is a side chain and implement cross chain / inter blockchain communication and for now the transfers are facilitated via a gateway right ?

Also, in the BEOS, are you using MongoDB like EOS ?

We haven't written any code for sidechain support at this point in time, it's more of a long term goal to get something like this to replace the gateways

And the code for the gateway will be Open Source / GPLed ?

Thank you for your detailed response. Its very informative.