ACCU 2018 had a lot of excellent Rust content. It would be great to continue this and create a tradition of having a Rust track. ACCU is generally a 50% C and C++ conference, but getting Rust content in is a way of weaning people off C and C++.
The ACCU 2019 Call for Proposals will be during October 2018, lasting just three weeks. See https://conference.accu.org
I hope we get lots of interesting Rust-related proposals, especially ones aimed at moving people from C and C++ to Rust.