The Developers have written an open letter to the community about Bitcoin scalability.

https://bitcointalk.org/index.php?topic=1168393.0

They have done a lot of work and describe it here:

Much work has already been done in this area, from substantial improvements in CPU bottlenecks, memory usage, network efficiency, and initial block download times, to algorithmic scaling in general. However, a number of key challenges still remain, each with many significant considerations and tradeoffs to evaluate. We have worked on Bitcoin scaling for years while safeguarding the network’s core features of decentralization, security, and permissionless innovation. We’re committed to ensuring the largest possible number of users benefit from Bitcoin, without eroding these fundamental values.

However, the real question for them is: Will they make a commitment to the principle of main-chain scaling?

Will they support volume handling on the main-chain as a preference to off-chain solutions?

1). Bitcoin should be scaled so that transactions are handled on its main-chain, as a first and guiding principle.

2). Bitcoin's main-chain capacity should be allowed to scale at a rate broadly in line with the general improvement in global computing technology.

How hard is it for them to publicly support 1&2 above? Unless they don't agree....?