I think it will be because it all boils down to sufficient evidence. The police seem to have been tenacious and convinced they have the right person to arrest 3 times, but Crown Prosecution obviously felt there was insufficient evidence for charging before. One can only summise that new evidence has been found.
The thing I found most strange was the digging up of her parent's garden last year.
I hope this thread can remain balanced and non-accusatory on the basis of innocent until proven guilty. All other threads have been pulled on the subject, whereas this one has managed to stay here since 2018.
The accused's next appearance will be on Friday in person at Crown Court (today's was video link in Magistrate's Court)