Syscoin NEVM testnet RC1, this is not intended to be a final release or run on mainnet. We are testing on our official testnet, migration happening on block 840000, this is an explorer https://sys-explorer.tk/blocks you can follow for Syscoin blocks. More info to follow for NEVM explorers, faucets etc. Once we migrate to the new block, masternodes can upgrade by simply running the new version of code overtop of their existing install. No reindex should be necessary.
If one does not want to run Geth for NEVM part of the network you can define zmqpubnevm as an empty string which will skip running Geth and not validate EVM blocks.