For periodicals, the year published is being displayed as "9999" should be displayed as "Current". Determining the pubyear Solr field correctly in the indexer requires more logic either in the index and/or in the view.
The date that displays appears to be the second date in the DtSt date field of the marc record. If the first date is displayed instead, the date that the publication began will display. This appears to be how Searchworks is set up.