I'm going to respond to just one line from the OP:
because it is still in a testing phase
So is Bitcoin
I'm running Bitcoin Core 0.15, the lastest is 0.16. Anything under "version 1", is considered experimental, and that's exactly what is says:
About Bitcoin Core
~
This is experimental software.
That being said, I can't wait to see LN become mainstream. But
https://lightning.network/ still has the same video from more than 3 years ago, where some nerds tell a long boring technical story. I have nothing against that, but it's not what will draw the larger public into using LN.
That's true but is there any discussion about removing the channel funding and transaction size limits? It's pretty much impossible for any large site or merchant to use while those are in place.
I don't think LN is meant to be used for large transactions. If $1500 per channel isn't enough, you can just use on-chain payments.
The only common scenario I can think of to use larger channels, is a gambler who often deposits and withdraws large amounts to the same online casino.
Yea, that is the general response to these types of questions <Bitcoin is still experimental> but I am looking for some game plan or project plan or at least some goals. If you work for a customer and you are tasked to create a gambling site, then the customer cannot wait indefinitely for you to develop that site, because he has to plan his business and he has to get the edge over his competition.
We are in the same boat, because a lot of "customers" are waiting for the "ultimate" scaling solution to start their new business and if we take too long, he or she will turn to the competition for a solution. In a sense, this already happened and this is also one of the reasons why BCash is used by a lot of people.
Let's just get some road map for the future and some targets to work towards.