Regarding Lyra2, it is something that won't take so long for implementing according to my estimation because we already have code from Lyra2 creator. According to my plan, I will implement it after DEMO conference. I will try to complete it before the end of November, but it will focus only on Vertcoin core wallet. To GPU miners, I need someone who can implement it and I can provide the code. You can PM me for discussing.

Regarding Open Source Stealth Address, I don't think it is a major issue now, whether open it now or later, it won't impact on Vertcoin. May be it will open after releasing Lyra2. But one thing for sure is SX will open source but it's matter of time.

Regards