Custom repeating event end date is current

If any of the child events have an end date that’s current or in the future

$meta_query = array(
	'relation' => 'AND',
	array(
		'key'     => 'repeat_option',
		'value'   => 'Custom',
		'compare' => '=',
		'type'    => 'CHAR',
	),
	array(
		'key'     => 'custom_options_$_start_date',
		'value'   => '$today',
		'compare' => '>=',
		'type'    => 'DATE',
	),
);