Here is the 2017 Eyepiece Buyer's Guide.
Place your telescope's focal length at the top of column O (where the red letters are) and hit enter, and your telescope's f/ratio at the top of column P and hit enter.
All the various fields will populate with information for your scope at that point.
1) Levenhuk may be gone. No dealer has stock They don't have stock. If anyone knows, send me a message.
There are other companies that may disappear in 2017.
What will happen, I don't know. Stay tuned.
2) There has been an explosion of private label offerings.
The same 60°, or 100°, or "flat field" eyepieces and lots of others are now being offered by many different re-sellers.
If the market boils down to two dozen sellers all selling the same eyepieces under private labels, there will be little point to doing a 2018 Buyer's Guide.