1. The last tracking for your parcel is this:
2016-08-20 15:20
Suzhou Exchange Bureau, have been exported to open

2. What does that mean, here is the answer:

My parcel stuck in “Export Security Scan” “Export Customs Scan” for long time, how can I do?

3. Your parcel is stuck at the Suzhou Exchange Bureau exporting facility and will not pass the Security or Customs check. Try again to contact seller, if he does not respond, then open a dispute to get your money back.

Hope this help.

Quote from AliExpressFreak on September 14, 2016, 14:37
Hello,i have a parcel stuck in Suzhou China As Well, Its Been There Since 2nd September 2016. Its last known status was that it left suzhou exchange bureau then nothing more then on... the tracking number is : RK431962645CN

1. This is what I found about your parcel:
International Mail# RK431962645CN Tracking Result
Summary
Tracking number Origin Destination Status
RK431962645CN CHINA SINGAPORE On route

History Detail
Local date/time Activity Location Remarks
01-Sep-2016 12:46 Received by Post Office 21502700
03-Sep-2016 08:05 Departure export customs SUZHOU

2. So basically your parcel is On Route to Singapore. May I suggest you read this for Singapore:
http://track-chinapost.com/China_Post_Arrival_Time_Stat.php

3. I don't see any problem with your parcel so far.

Hope this help.

Quote from VasiCZ on September 16, 2016, 16:21
2016-08-17 13:50:10.0 昆山city parcel 局 received
2016-08-17 14:38:29.0 昆山city parcel 局 customs scan
2016-08-17 16:19:08.0 leaving 昆山city parcel 局 ，next station 昆山
2016-08-20 15:20:02.0 Suzhou Transit Station export security scan - stuck
2016-09-14 10:13:13.0 arrive Suzhou 昆山city Post Office Parcel AD Dept. delivery office
2016-09-14 14:10:47.0 昆山city parcel 局 received
2016-09-14 14:10:47.0 Suzhou 昆山city Post Office Parcel AD Dept. 已rejected
2016-09-14 15:20:48.0 昆山city parcel 局 customs scan
2016-09-14 16:53:40.0 leaving 昆山city parcel 局 ，next station 昆山
2016-09-16 12:46:45.0 Suzhou Transit Station export security scan

Can I still expect the consignment? Or will it be returned to seller?

Hello, I'm sorry but I think it's being returned to the seller. You should get in touch with him or open dispute.