TDE Implementation in 12c using impdp remap tablespaces

HI All,

we re implementing  TDE on 12c Multitenant DB  using following steps

1)Create auto login key store at CDB and PDB level.

2)Export Table spaces at PDB level.

3)Import table spaces using remap table space and remap schema  without dropping existing table spaces.

Existing  table spaces are having materialized view , lob segment and lob index so  can some one please suggest remap is good option or should I drop existing table spaces ,recreate encrypted table spaces  using impdp .

Thanks in Advance.