This will show what export operations are pending on all of your management agents. It was adapted from a script I found in the FIM Script Box that would show the pending exports for a single MA. Instead, this script queries the Sync Service for all of the management agents and displays the pending exports for all of them.

$MAs = $(Get-WmiObject -class "MIIS_ManagementAgent" -namespace "root\MicrosoftIdentityIntegrationServer"` -computername "." ).name
$Rpt=@()

foreach ($MA in $MAs)
{
$MA = @(get-wmiobject -class "MIIS_ManagementAgent" -namespace "root\MicrosoftIdentityIntegrationServer"`
-computername "." -filter "Name='$ma'")
if($MA.count -eq 0) {throw "MA not found"}

$Rpt+=New-Object PSObject -Property @{
"Name"=$($MA.name)
"Update"=$($MA[0].NumExportUpdate().ReturnValue)
"Add"=$($MA[0].NumExportAdd().ReturnValue)
"Delete"=$($MA[0].NumExportDelete().ReturnValue)
}
}
$Rpt | Sort name | ft Name,Add,Update,Delete -AutoSize