For those who are not on the discord, I would suggest joining with this link: https://discord.gg/kfghUGm
Its Free to join and you get up to date information and can talk to most members of the community. Discord works in a browser or as a download. You can use it on just about any device and browser. If you have any issues, contact Discord support and they will help you out!
To Answer The Question, WA is currently down because it is undergoing a reset. The downtime really depends on how quickly 'Mr.E', 'Morris' and the rest of the staff team, work. This means that for the downtime you have a lot of free time. If the server is up, you will likely have an issue joining, do not panic everything should be fixed before the next launch.
Here are a few ideas to keep you busy.
Study Its finals weeks for some, and it is coming up for others.
Play other servers: JAC gaming is home to a few servers. I would suggest Lapitos it is a tech server, but the staff of great!
Learn: Use this downtime to learn more things, become one of the most knowledgeable players.
Do not be scared to give input, the worst that can be said is 'No.' WA was a popular server and with the players having a positive impact on the community it can get to +80 players again. Suggestions, within reason, will be looked at. Please note that just because a suggestion is made does not mean it will get added. If you suggest something but fail to get a reply in a reasonable amount of time(a few days), send a message in the discord.
This is an assumption and I could have looked over a mod in the list, so look for yourself before you read what I have to say.
Mr.E has released the mod list currently and it looks like the version will be updated from 1.7.2 to 1.10.2. As well as a few large changes to mods. That being no Thaumcraft or Witchery. Some of these changes were likely made so that it can fall under the requirements for the curse launcher. I'll add an attachment of the photo so that you can see the mod list for yourself.
Happy Holidays, Brian