Let's target

1. MySQL 5.5 => Percona MySQL 5.6
2. ee site cache type change command
3. Tuning mysql script - tuning-primer.sh https://rtcamp.com/tutorials/mysql/tuning-primer/
4. MySQL slow log sending to anemometer database in real-time (during debugging)
5. Better autocomplete for debug script
6. WP debug.log symlink in /logs/ folder so all site logs can be in one place
7. PageSpeed support
8. More flags to ee stack install e.g. --prod which will run eesecure and force admin to change default username and password. --stable which can install php & nginx without debug support (ee debug command will be affected by this)
9. /var/www/example.com/conf/*.conf support for extra files to be included in site config. Ideal for redirections.