NAVcoin will begin signaling Segwit on May 1st.
They also have a great team of developers and interesting projects going on, check it out.
I checked on their website and it looks this is a promising crypto-currency. However, I looked at their roadmap and didn't see anything mentioning about the SegWit thing. Can you point me out to any article that says about signaling SegWit activation?
Edit: NVM, I already saw it in there Ann thread:
https://bitcointalk.org/index.php?topic=679791.22400. I'll just have to check it out.
Segwit voting is now at about 85% in the last 800 blocks. At this speed, NAV Coin will lock in Segwit in a couple of days.