I had received the same timline information a while back, but when I opened a case in March to check back on it, they provided the following information:
"SAP Concur takes very seriously the receipt digitalization regulations and local requirements requested by each market (for example, Spain).
Our first priority and current activity: build an architecture based on the most complex requirements to be able to support all markets’ needs; France and Spain compliance are roadmap candidates for the second half of 2018.
More detail regarding release timelines and countries will be available in the second quarter of 2018. However, I cannot confirm you any specific timeline or date at the moment."