On your next system upgrade you will receive all the latest versions of KDE’s Plasma, Applications and Frameworks, in addition to several other package updates. For more details and the full changelogs on KDE’s software releases, you can read the official announcements:
We are now also shipping babe in our official repositories, KDE’s brand new music player which just entered beta phase. Other noteworthy package updates include libreoffice 6.0.2, wine 3.4, samba 4.5.16 and curl 7.59.0.
It should be safe to answer yes to any replacement question by the package manager application. If in doubt or if you face another issue in relation to this update, please ask or report it below.