Nothing is changing for you. Apps and extensions are still getting updates, and there is no plan to slow down. 1Password X is only for people who can't or won't install the apps (Linux, Chrome OS, corporate restrictions, etc.).
It's not a change in direction. It's a broadening of the path. Apps and extensions are still getting updates, and there is no plan to slow down. 1Password X is for people who can't or won't install the apps (Linux, Chrome OS, corporate restrictions, etc.)
Every version of 1Password available on https://1password.com/downloads/ works with standalone vaults. The only exception is 1Password 6 for Windows, but there is a link to download 1Password 4 for Windows. The link for that even says "Get 1Password 4 (standalone version)".
You will be pleased to know that 1Password for Teams does not use Dropbox for syncing and has what we call Better Than Two-Factor™ through the use of an Account Key. From our "Understanding the Account Key" article (https://support.1password.com/account-key/):
With traditional two-factor authentication, an existing device is used to authorize a new one. But the existing device is only used for authorization. The one-time passwords are not used to harden the encryption.
Your Account Key works in much the same way. It is required to authorize a new device. However, your Account Key is actually used to improve the encryption of your data. Both your Master Password and your Account Key are required to decrypt your data.